They are great at Teeside and have to put up with many exam callsigns cocking up thier RT.
You will be fine doing a QXC with them.
Only thing I would advise is take your passport with you and don't take any nav gear out the aircraft (espesially if you have a pair of dividers on sharp pencil etc). The security there are particularly anal retentive and you are a major risk if they knew you could stab yourself with your Nav dividers.
MJ