As a FI (previously employed p/t by Aeros) who did his IR there I maintain a close relationship with them and can speak very highly of them.
They maintain my own C172 at Gloucester and (apart from the usual moans and groans about being fleeced by maintenance organisations
) they have looked after her very well.
The other point not mentioned is that EGBJ also has RNAV GPS approaches, which are a delight to fly.