In Glasgow I can speak for both griphouse and the Royce Gracie school being excellent.
The griphouse is an awesome facility, the two main instructors are brown belts Paul mcveigh and Gary Christie, very detail oriented teachers and always up to date on modern techniques as well as fantastic basics. Both guys are likable and funny but above all great teachers. Produces good competitors and there's a variety of guys at varying belt levels with different games so you get varied experience and get to work on different things.
The Royce Gracie affiliate is run by Scott Mcveigh, a Royce black belt who's been teaching for 10 years now. It runs out of the kelvin hall and up in Balfron, however big plus is Scott is getting a full time Bjj academy in the next month and it's looking like it'll be a good setup with day and night classes and Scott teaching full time. Again, Scott is a great guy with tons of experience and great teaching style, albeit a different one from at the Griphouse. Also produces great competitors. Medals at everything they enter at and again belts a lot of belts at varied levels. Most people there tend to have a similar fundamental game (think Roger gracie) but god are they good at it.
Got a broader game (as much as any white belt has a game) from the griphouse and more applicable techniques, but got more "ah ha now everything works" details from Scott in terms of concepts that apply everywhere and every position.
Hope that helps
