I can second that, I am curently on my second module with Bristol, all the guys and gals there are very helpful and the results show it.
http://jals.co.uk/forum/showthread.php?t=280
http://jals.co.uk/forum/showthread.php?t=362
http://jals.co.uk/forum/showthread.php?t=487
http://jals.co.uk/forum/showthread.php?t=550
I think the graphs above showing the national average against Bristol's results say it all.
FF