Its OK...but in my opinion, nothing special, the chances are you will have never heard some of the EQ and compressor models, and the chances of you recnising them are slim,

for example you aint gonna go "oh iv heard this neve on a madonna track"

but for what it is, its alright, i just use logics own plugins and the sonalksis ones, they do me and there reasonably priced, but i suppose for a hands on feel, the liquid mix is better.

Try having a go on one in a shop to see what you thing :)