I've used them for handling from time to time when flying through Dundee.
My impression is of a well run school, friendly, on a nice airport with good facilities. The aeroplanes at a casual glance look well looked after.
Whilst there are cheaper places in the world to go as well as places with better flying weather (if time and money are an objective I think I'd recommend California or Arizona), but if you can get a PPL in Scotland, you'll be well placed to handle most things that the rest of the world has to throw at you.
That said, I've never used their instructing services, so can't really comment on that.
G