Honestly, I wonder how I hadn't tried it all these years and struggled with a manual one, damaging my gums. Effortless, effective brushing that protects the gums.
Obvious difference from the first use.
At this price, it's a no-brainer!

excellent choice for a light but also light-use toothbrush. 2 buttons on off and very satisfactory battery. it is suitable for travel and a 2nd one at the office for simple use

Moderate though lightweight, suitable for travel, I don't find it effective. Of course at home I use the Oral b io 10, which is a beast! So there is no basis for comparison between a very cheap toothbrush and a very expensive one.

Cleans effectively compared to regular toothbrushes. The battery lasts for many months. Worth it!

I have been using it for ten years. A couple of times when it ran out of battery and I brushed my teeth without it working, I thought I had left them unwashed. It is not bulky, it doesn't need charging, the battery lasts about a year, and the vibration is just enough to do a deeper clean.

I have been using it for less than a month, however the results are excellent. You feel that it does a better job than a regular toothbrush.

And considering its price, it is a purchase with closed eyes.
I don't know about autonomy, etc., I will come back