I have used an Oral-B powered oscillating brushes many years. All that time I believed it was at least as good as Sonicare. Furthermore, I had some spouts when I went back to a traditional brush, but I was very loyal to the Oral-B. I wish I had not been quite so loyal.
I purchased the Sonicare 2 Series on sale with a coupon, so the price was too good to pass up. A great Christmas present to myself.
I was not immediately impressed because the unit comes with an "Easy Start," feature turned on that gradually ramps up the power. Furthermore, my first few uses had the battery not fully charged.
Once I disabled the Easy Start and got the battery fully charged, I was blown away by the brush, and my teeth just kept getting better during the first 2-3 weeks of use. They also got a shade or two whiter. A few days a week I am using my Oral-B as my first brushing of the day, just to mix things up and give some variety, but it's my Sonicare session every evening and some mornings that I look forward to so very much.
Read the manual and watch some of the online suggestions on techniques. You want to gently move the brush along your teeth, at an angle to the gum line. You don't brush in the traditional sense. The unit does the work for you. I find the feeling so enjoyable that I tend to brush three minutes instead of two, hopefully that isn't too harsh on my teeth, I just love using the Sonicare.
Furthermore, before my Sonicare, my teeth would start to feel dirty a few hours after brushing. Now, even after eating, my teeth remain relatively clean feeling. That's just how clean they get, I believe carbs and sugars do not build up on the teeth as easily because you eventually get to such a clean surface on the teeth after a few weeks with Sonicare, the teeth stay clean nearly all day.
My only hesitation of the product? Some have reported that once you go up to the HealthyWhite+ model or above, the performance is better and closer to older generation Sonicare. Therefore, I have been so impressed and blown away by this unit, that I'm considering upgrading to a more expensive unit as I have simply become so passionate about my teeth thanks to this unit. I do wonder if some of the people who state this observation are using the 2 Series with the "Easy Start," feature because once fully charged and Easy Start off, this unit is quite powerful.
Some complain of the price of Sonicare heads compared to Oral-B, but a sonic toothbrush head should also last longer since it barely comes into contact with your teeth. The 3 month suggestion is still too long for me personally because I figure bacteria starts to build up, but I can see the brush staying in relatively good shape that long. The Oral-B brush heads start to deteriorate after just a couple weeks.
Overall, the Oral-B is an acceptable product, but the Sonicare at least with my teeth, is another level altogether. Highly recommend Sonicare, perhaps even try the HealthWhite+ or above to get the maximum performance. Nevertheless, this unit has proven to be an extraordinary introduction to Sonicare for me. I only wish I had been using it the past twenty years. It's that good.