I went there at the end of Jan, the Sim check shouldn't be too much to worry about. They told me they are looking for people who are trainable. Also they give you the SID and non-precision approach at the start of the day, so you get plenty of time to look over it before/after your interview. I think I got East Mids, but have heard of people getting Liverpool and Luton too. During the sim you will get an emergency (we got an engine fire and and engine failure) but they're not looking for anything too great with how you deal with it. We didn't even get into trouble shooting it as our instructor wanted to have us speed up to VMO and then down to Vs on one engine.