Its probably too late now for this to be helpful to the OP but for what its worth Cheshire Companions have always been pretty good with me over the years. They have been going for 25 years plus to my knowledge started by a lady called Jane and now run by her son, Wesley.
I always have outcalls and have met probably 30 plus of their girls over the years and they normally come over to Preston to meet me at a hotel or occasionally I have used Worsley Marriott if I wanted a change.
There are 3 or 4 receptionists 2 of whom are (or certainly were last time I used them) on their books including Gerri who I have seen years ago and was very nice, and Elizabeth who I have not met.
The positives for me are
1) The girls in the pictures on their website are genuine though with tattoos airbrushed out.
2) If you like the look and sound of a girl, you can have her call you for a brief chat to see you get on before booking her.
3) They have always been very reliable and punctual.
4) Many girls can be booked for 2 hours for £200 if you commit to that time period on booking.
5) The agency impress upon their girls that the experience they give the punter is important.
The downsides
1) Never any facial pictures even to a long term punter like me who they know
2) On the odd occasion where I have not been entirely happy (which admittedly is rare) the owners don't take criticism well.
External Link/Members OnlyThey also have a couple of other websites that look like different agencies but are all the same girls. You do get different pictures to see of them, though.
External Link/Members OnlyThere is another swell but I can't remember it..sorry.
I seem to be a lone voice on here when I mention this agency and nobody else seems to be either positive or negative about them; more persona non grata.
I have never tried Mckenzies or Elite and perhaps have been missing out.
Anyway, there's my thoughts.