I have to agree, flying in the Channell Islands is fantastic. The whole Jersey "zone" are incredibly helpfull and totally GA friendly.
I have done Guernsey several times and Jersey once this year, last weekend Guernsey in fact. I do it in everything from my Cessna 152 to the multi-engine Beech and every time we are treat incredibly professionally by all concerned.
Cheap fuel, fantastic handling and great food, it can't be beaten!
I am flying out to Guernsey in October in the multi as a night flight and Guernsey ops gave me all of the information I needed to make entry into the zone at night simple and legal!
Best memory for me is doing the hop between Guernsey and Jersey at 1000ft and seeing a 737 at the hold waiting for us on finals. Very cool.