I fly from Bristol Airport about three times a year, next time this coming Wednesday, the last time I shall be able to use the soon-to-be-defunct Continental service to Newark.

Not sure what you are requiring with regard to facilities, it is a regional airport, larger than Cardiff I believe, and is undergoing extensive enlargement currently. The airport is to the south of Bristol; car parking at the airport is on the side of a hill and it can be a bit of a trek with luggage to get it up to the terminal. Usual coffee shop available, burger bar and one restaurant. No airbridges so if it raining you get wet getting across the tarmac!!

You will find Bristol less frentic than LGW.