5 stars for teeth-cleaning ability! I changed to Oral B at the recommendation of my periodontist as I have a history of gum recession. I've enjoyed the teeth-cleaning features of this brush. Unfortunately, I've had recurring issues with keeping this toothbrush clean. After just 2 months of regular use I began to detect a mildewy smell. The design, while sleek, tends to keep water inside - both the brush head and the handle head. I replace my brush head regularly but that does not solve the issue of the mold inside the handle head. I've now had the brush for 5 months and clean it every day according to Oral B instructional videos (disassemble and thoroughly rinse and dry both parts, allow to dry separately overnight); however, this still hasn't solved the problem. It's nearly impossible to dry all the crevices out completely after rinsing, and the brush head can't stand up on its own to dry overnight. I've soaked it in vinegar, denture cleaner, soap, etc., and still struggled to get rid of the smell. I don't really want to clean my teeth with something that molds easily - and I'm really bummed about it. I might switch to a different toothbrush model that doesn't have so many crevices.

My dentist insisted I get an Oral B IO because I have crowded teeth and I would get a better clean. I ditched my sonicare for this toothbrush and I regret it deeply. I just got through picking an inch thick layer of black mold from the toothbrush connector. It is so poorly designed to have that issue. I'm mortified.

Poor quality. It lasted less than a year, and unfortunately I didn't keep my receipt. It kept a charge for a few months, but then wouldn't recharge. Complete junk!

[This review was collected as part of a promotion.] I've been using the Oral-B iO2 electric toothbrush for a few weeks now and I'm honestly impressed! The cleaning performance feels very professional – my teeth feel smooth and fresh like after a dentist visit. It's not too loud, which is great for morning use, and the sleek black design looks modern and premium. The battery life is strong — I charge it about once a week, even with regular use. For the price, it's definitely a great value compared to other high-end brushes.

[This review was collected as part of a promotion.] So far so good. I just got it so haven't used it long. So far the main thing I have noticed that I don't like is that the brushing part Is too small. I wish it was larger and cover more at one time.Long battery life. Function well with different level of vibration and the brush are just the right firmness. Well worth the money.

[This review was collected as part of a promotion.] I have been wanting an electric toothbrush for years now and wow was I so excited to receive this for free from Influenster in exchange for my honest review. I am the target audience for this product and it has completely changed my dental routine. My dentist has been suggesting one for awhile now because I aggressively brush my gums with a regular tooth brush and this electric one knows when to stop close to the gum so I'm not damaging gum tissue and ive seen and felt the difference. It definitely tickles when using it but I love the portability of the charger and the black color. Huge huge huge fan of this product so excited that I own one now and will not go back to manual!

[This review was collected as part of a promotion.] Oral-B has proven time and time again to be a trustworthy brand. I just them with my oral health care. The iO2 Series Electric Toothbrush starter kit is in line with their impressive reputation. It charged to 100% quickly. Yes, CHARGED! That means there are no batteries to change or get low in power. It comes with 2 head attachments. The best part of this toothbrush is how clean my teeth feel after using it! This because of the strong pulsing, the timer letting me know how long to brush and the specifically designed round head. I can feel such a huge difference from a manual toothbrush. I plan to purchase 2 more immediately!

[This review was collected as part of a promotion.] I've used an electric toothbrush years ago, and it was decent, but this one is by far pretty darn good. First off it's a black toothbrush, so for my spooky people you'll love it (aesthetically). The toothbrush isn't too heavy or bulky, easy to hold lightweight. The toothbrush comes with an easy dock to charge it. I just brush my teeth morning and night and put it back on the dock. The electric toothbrush has 3 settings, think low medium and high. I like using the first and second setting, the third one seems a little too much or abrasive for me. If you have a sensitive mouth/teeth or gums, you'll be good with the first 2 settings. The first one is a light casual brushing (how most people would brush manually). The second setting is a little bit of a deeper clean, really spin brushes those teeth for a dentist feel. I can definitely see/feel a difference in my teeth since getting/testing out the toothbrush. The noise isn't too loud, it's pretty much the normal amount of buzzing you get from an electric toothbrush. There's also a little timer that vibrates when you're ready to go to the next side of your mouth, which is fun and helpful, that way your fully getting your teeth cleaned with the right amount of time and care. Would definitely recommend this toothbrush.

[This review was collected as part of a promotion.] If you're looking for a good toothbrush that's quite and has a great battery life that leaves your pearly whites pearly and white. Get this toothbrush I know it can be a bit pricey but it's so worth it.

[This review was collected as part of a promotion.] This is my first ever electric toothbrush and I was worried that it wouldn't work well or I just wouldn't like it. I really am impressed at how well it works to clean hard to reach spots and leaves teeth so fresh and clean. It really is versatile and helps with keeping mouths healthy between dental visits.