[This review was collected as part of a promotion.] I chose a 5 star rating because the bristles are really soft. I normally bleed when brushing and I haven't experienced any kind of bleeding with this. I also love how it fits on any Sonicare toothbrush. Probably the best Product I've ever used.

[This review was collected as part of a promotion.] The bristles were too soft to clean difficult tarter on inside back molars. The bristles were great for the rest of my teeth. I like that there are a bunch of bristles that are very small. Very gentle in gums so that is nice.

[This review was collected as part of a promotion.] I am new to using a Sonicare product and I have to say that I truly love it. The brush system and bristle attachment have kept my teeth feeling fresh and clean better than a manual brush ever could. I use mine twice a day and the plaque buildup that I normally have to deal with has been kept at bay, which is awesome! My gums feel rejuvenated as well. I would highly recommend this great product to everyone.

[This review was collected as part of a promotion.] Thus far I have really enjoyed using Sonicare's Brush for Sensitive Teeth. It is gentle yet still thorough at cleaning really well. I loved how it didn't my my teeth ache of feel sensitive at any point. Other brush heads I have used in the past are too rough for my liking.

[This review was collected as part of a promotion.] I have been using the Philips Sonicare S2 Sensitive Brush Head and I am so glad I started using it! I was recommended by my dentist to use a sensitive toothbrush head and I have been in search for the perfect one and I have found it! This toothbrush head really is sensitive and feels so great on my teeth. It also makes me teeth feel so clean.

[This review was collected as part of a promotion.] It could really be good if tweaked a little. It's too sensitive on teeth and teeth don't feel clean after using.

[This review was collected as part of a promotion.] This brush is extra soft so a bit different from the soft one I am used to. It is good it clean well and I feel like it stays clean just as if I was using the diamond clean head.

[This review was collected as part of a promotion.] This is the first time I try out this new toothbrush and I already love it since the first day. The brush head is extremely soft and smooth so I feel very comfortable and relex every time I brush my teeth. The head is also very gentle and gives a deep clean in the gum area. Definitely will buy some more.

[This review was collected as part of a promotion.] Very good quality and very easy to use. Helps me immensely to brush and to reach areas I wouldn't normally be able to reach. Can be adjusted to the speed you prefer and helps me make sure I'm cleaning all areas.

[This review was collected as part of a promotion.] This brush head is much softer than I'm accustomed to, but I can see it being very useful for someone with highly sensitive teeth. Nice feel and cleans well, although I needed to use another brush to really feel like I was getting my back molars completely clean. It also doesn't attach flush with the handle, which might be because it's a study model? In any case, a minor annoyance.