I find that this really helps to increase my fluid intake. So far I've tried the fruit punch, mixed berry and iced coffee flavors. The cartridges have no after taste with the exception of the iced coffee. You can use it with plain or carbonated water. I purchased the 22 oz, white, stainless steel bottle. I prefer a stainless steel bottle and was very pleased to see it was available in white. I also purchased a silicon sleeve and a case to hold two of the cartridges from the manufacture's page. That way I can switch flavors with each fill up of water.

I am happy I bought that because I don’t want to buy sodas less frequently plus I like that’s it’s a metal version for keeping water cooler for longer plus I got a plastic one for mom for moms day and we all love it thanks to my sister that showed us how cool this bottles are, I would definitely buy more from the company thanks a lot,

I WANTED THIS AS A FLAVORED WATER AND FILTER FOR WATER. THAT IS UNTIL I SCROLLED DOWN THE PAGE AND REALIZED THAT THIS HAS A BATTERY NOT ONLY THAT BUT YOU SUCK THE WATER THROUGH IT. I CAN SEE A BROKEN BATTERY LEAKING BATTERY ACID INTO MY WATER. NO THANKS!

I absolutely love it. I live in Florida so you either need a tumbler or water bottle at all times. Im giving it 5 stars because most of the issues I realize in 5 minutes they have already solved the problem. 1) the people saying it's difficult to drink from here's tips. you can push the flap top down under the lip to move it out of your way. also, if you're having to tilt your head too much to drink turn the bottle around so the lip is facing you. this also help the flavor hit nicely. 2) They label all the little bottles which is nice because I usually carry a caffeinated one and hydrate one. 3) I think a lot of people who are saying they run out in 2 bottles its not actually empty. Make sure you open it and check. if you drink it like I said with the lip facing you also helps you get flavor every time. you can also open these and fill them with your own concentrate. 4) definitely a nice alternative to stopping for $6 refreshers at Starbucks all in all, for 20 bucks it was a nice buy. My daughter wants one now and i've been drinking water nonstop.

It’s overpriced for a product to taste like chemicals I bought this for my son thinking that it would be good but I would not recommend other mothers to get it to all the mommies out there don’t get this for your kids thinking that it’s a good replacement for other sweeteners just get them a regular water bottle with water somethings are better left alone as they were . And don’t buy something because others are you hyping you up to get it, it’s really not as great as they say it is…

I purchased two of these white bottles. In less than a year the paint has come off both of them. For the price you pay, this should not happen. The next time I need a bottle I will bring the top with me and find a bottle that it fits with it. You can also buy the top in Walmart. I will only buy the top moving forward. Circul does not take care of customer concerns in regards to their bottles.

I bought this unit for a co worker who had chemotherapy and needed to drink a lot of water. Well he hates water and was using packets. I got him this and he called me to say how much he loves it and drinking water is manageable because he can really turn up the flavors his taste buds are destroyed.

after buying the plastic bottles to try cirkul. we realized how much we liked our bottles when they started going everywhere where with us. we recently upgraded to stainless steel. i really like the stainless steel keeps water alot colder for longer. I'm a fan of the 22oz size fits perfect in my tiny hands. we like most of the flavor cartridges we've tried. Walmart has a nice selection.

while i like the variety of flavors and can control the strength it leaves a weird feeling in my mouth and makes me even more thirsty. im not 1000% sure but since using it for about a week ive had the WORST migraines of my life. ive been informed it could be from the artificial sweetner they use. may be good for children who dont like water but not much else

i like the plastic bottle, bad thing is it just doesnt stay cold longer. i bought the stainless steel one today, it stays cold, but leaks every where. i have even tried a different top and it still leaks. i wouldn't recommend the stainless steel unless you put a paper towel around the top so its not all lver you