Personally, I've really enjoyed this show so far. I've noticed that some have mentioned its lack of realistic situations, and although I do see how this can be true, I'm not watching The Deep End for educational purposes - I just want some entertainment to relax to at the end of a long day! The cast is very likable and they all seem to have a natural chemistry with each other, which keeps me interested. The script could be better at times but I think that as the show continues, its individual elements will grow stronger with it.
If you're not looking for a documentary on the way a law firm really works, but just want some light entertainment, then I suggest you give The Deep End a try. Who knows? You might just like it! I do :)