This was a replacement for an older model. Only thing which i found with the old one too is that the battery power doesn't hold. You need to charge same day you want to use. Not worth using wet as blades not as sharp then. Very good for hair removal all over, there is a certain nack to using around the more delicate areas such as pubic edges and armpits. Make sure you pull your skin tight and i use a 'jabbing technique!' Hair has got thinner especially on legs. Normally takes about 20 mins to do legs and armpits. I recommend this is you can take the initial shock mild pain factor. Think how it feels when you 1st pluck your eyebrows. you soon get used to it though.