STB = Scottish Tourist Board
SG = Self Graded
Star ratings range from 1 - 5 with 1 being basic and 5 premium

Reviews on LateRooms or TripAdvisor may contain information that can be helpfully for you to understand how a hotel operates and the standard of the facilities. Some reviews of a nasty nature however are of little help to anyone, best to take note of the balanced reviews to get a good understanding.