I had one of those !! I used it for a long time and if you keep the blades replaced - it works really well. It's safe too - the metal 'teeth' keep the blades from being dangerous....but you still need to be careful with anything that uses razor blades
It's especially good for layering if you have a thick haired dog -
There's another trimmer my husband bought from a TV Infomercial that absolutely SUCKED ..but that isn't it.... I can remember asking him -
WHAT WERE YOU THINKING ?
the one he bought fell apart on 1st use lol