Relax, Jim, and turn off your caps!  

I can't comment on whether they're any good or not -- or even legit.  Personally, I think $300 is a pretty stiff price.  For $300 -- if you do your homework -- you can virtually assure yourself of a nice GFE session with a very attractive woman.  In the absence of any reviews, spending that much is simply a dice roll.  That's not to say I wouldn't do it, but you should be prepared for the possibility of a mediocre outcome...

As for Blue Pleasures, it's an escort listing site (sort of like a local Eros) run by Amber, the owner of the former Body Oasis agency.  A link is below...  

Have fun, MG