Swansea
Mikeb,
I think your comments about Swansea are out of date, and don't reflect the current situation. I was there last weekend, and had a good experience.
Air Wales don't fly there any more. There are Avgas and Jet A1 bowsers, as well as pumps for both. The hose limits are marked on the tarmac.
The cafe seemed to be OK to me: not gourmet, but £3.65 for a full cooked breakfast, and good coffee. New management I believe.
Friendly guys and ready to refuel as we shut down.
This was on a busy weekend, with lots of other aviation activity going on.
Do be aware that they do parachute jumping there these days. So it is important to be aware of that, expect a short delay and always ask for rotor start.
(Don't know about RR)
Helinut