I only look at the local ones normally.  Sometimes I will look up reviews of the Florida add providers or the add of an out of town-er that posts on the local board.  On the general board if someone posts something eye catching I will look them up.

If she is someone I am in interested in, I will read the whole thing.  If I don't really have much interest in her, for whatever reason, I may not read it, just depends on my mood.

Swim

Often... I look at numbers first...

And what amazes me is how many will waste time seeing those reviewed as 1,2 and 3's.. What do they think they will get that will be different???

read a provider's website and several of her reviews the day before I am going to see her.

I don't normally just read any reviews unless I have some time to kill.