Wbryce,
I used real simulation or what was Yorkshire Flying Centre,
www.realsimulation.co.uk before I did the ryanair assessment as they have a 737-200 which is what Ryanair use for the assessment. I also have family up that way, so didn't have to pay out for accommodation!!
The instructor there (Kevin) was very helpful. The sim if I am honest was old and battered, to be expected I guess, but it definitly gave me the practice i needed in order to perform on the day. My only complaint was the real lack of proper feedback through the controls which made trimming a challenge, but in a strange way it then made the sim that Ryanair used easier to fly!!
It was money well spent, thats for sure.
Cheers
Dan98