So I got this one just because I never tried it before but it didn't look special. I think this is the best toothbrush I used so far.
The bristles are not hard not soft and it clean also tongue and cheeks while you brush your teeth, is really good.
I don't know how long it will last but i hope at least 3 months. I saw in the market some interdental toothbrush... I'm curious about it, maybe I will try it too.