I fly from Andrewsfield, it's a well run and friendly place; I don't use the club machines having a share in a Cub which lives there.
They have a group of experienced instructors both career and retired airline types and seem to me to offer a high standard of training all the way through F.I. and CPL. The rental fleet is a reasonable size with Cessnas and Pipers on the fleet, and with only one training establishment on the airfield delays getting onto the runway are few.
The atmosphere is friendly and welcoming, more so than Stapleford, wander along to both and see how you feel it might be that you feel happier at Stapleford.