Tayside Aviation: did an Sep Renewal some years ago with a bad tempered instructor who is still there. So bad I was compelled to complain to the md and was given a couple of hours free flying that I never bothered to take. I also witnessed one of their cadets being ripped a new one in the reception area by a middle aged bully / instructor. So appalling I nearly intervened / walked out. The kind of training I thought was extinct in the 1950s. It may / should be better now. However, based on my experience I would not recommend Tayside. I would highly recommend ACS @ Perth if Scotland is where you wish to train.
As above, good luck.