The AspirePlus Lounge at Bristol Airport is just a little bit of a step up from the main Aspire lounge.
It is much smaller, but somewhat more premium, as befits the higher price. Also, all Business Class passengers (on airlines which have it out of Bristol - think KLM) gain free acccess. There is a staffed cocktail bar, and better food.
It is also adults only - no children are allowed, unless they are in Business Class.