Miles High
Doesn't airbase have a twin in Shoreham for hire and training?
I used to fly a C310 out of there with them.
Personally I think the field is stupidly expensive and delays are unacceptable. However, from a training point of view it is excellent, it will teach you fantastic situational awareness and R/T discipline.
Otherwise GWC is a lovely strip, but terribly limited by weather.
You pay your moneys......
ODL