I have visted Hawarden twice recently and also flown through their overhead on two other occasions en route elsewhere. ATC are excellent and extremely helpful. The last twice I have been I have visted the tower, and on the first of these occasions been shown in quite some depth by the controller what he was doing and what his job is all about. This was one of the most educational airport visits I have ever had.

As some have already commentd there can be a bit of windshear in certain conditions, but these are noted in most flight guides.

As some have said, the GA facilities are not great but this is not really a GA airport. Worth a visit though if you happen to be in the area.