I went up to ACS in Perth in September and I have to say I was really impressed by the entire setup. From the CGI right through to the lady in the reception they go out of their way to make you feel welcome.
If Cumbernauld is near to you Ginger then go in and speak to them as one of the guys I spoke to there has just completed his CPL/IR at Perth.
I also visited Tayside at one of their open days in February this year and while they said all the right things they say the school has a partnership with Loganair. Whilst this may be true Loganair also recruit a good number of pilots who trained with ACS/AST so don't get sucked in by that. They also have a lot of instructors who completed their licenses with integrated schools and are only working there until an opportunity comes up with Loganair. That just didn't sit right with me.