Well said Whirly,
I spent a lot of money at Sherburn in helicopters albeit sometime ago and never had any complaints. Even did my instructors course with someone who became an instructor there, though I don't know if he is still there.
Eoin,
One of the most important thing in learning to fly is personalities. If you feel comfortable somewhere then that is a good start. See a thread on the Private Flyers forum for learning at Sherburn.