My experience, admittedly many years ago, would be to avoid them with a bargepole.
I have seen about 5 girls from this lot who claim not to be an agency but are. They ranged between fairly crap and sheer crap.
They had a website and maybe still do, which doesn't allow any ratings of less than 10 out of 10. What is the fucking point of having a rating system under such circumstances?
When I queried this I was banned from their site.
They used to have an alleged punter called Cornishman who reported every paid sex encounter as though it was a great love affair.
From what I could gather - mainly from one who let me down - their prostitutes preferred longer appointments such as over nighters, that way they could make more money!