On the + side
: D

K:
Gamston, fast, efficient, RR if needed. Will refuel without you there if you tell them what you need (to save time).
Carlisle, fast, short walks, good food.
Denham (on the helicopter side). I've RR'd on the North and the last Avgas invoice came 3 months after drawndown so good interest on the money in bank.
Cardiff (but a bit more expensive) but sure were fast and helpful.
Lands End (all self serve and within 50 feet)
Prestwick (v helpful handing team)
Oban (free tea and biscuits with every litre uplifted)
Wolverhampton (no landing fee)
Eaglescott (Devon) - but cash only (ie hard currency...)
Haverfordwest - looooooooonnnnnnnnng hose
---------------
On the - side
: *
Headcorn (HOW CLOSE is the fixed fuel line to the moving rotors) + thousands of biplanes parked in the way.
Sheffield (keep running out of fuel, etc)
Blackpool, either you push the beast to the pumps or walk a long way to pay for fuel from a based operator
Swansea (hose line distance problem - "it won't reach boyo")
Southampton ("you can't land 'ere" after giving permission to land for fuel)
Denham (on the other side) - 6 month queue of FW's
---------
On balance, bowsers are best, operated by military or ex-mil personnel