Conington is a bit closer to Cambridge than Sibson, has a hard Runway and is diversifying it's fleet nicely.
They currently have 4 x C152 (inc 1 Aerobat)
1 x PA28 161 Warrior
1 x Arrow
1 x Duchess
1 x Chipmunk (wa-hey!)
and an AA5 on its way
I also think it is a little cheaper than either Cambridge or Sibson (C152 is about £100/hr, the Warrior is £128/hr) All their Instructors are mature, serious career instructors, with no Hours builders!
If you haven't already guessed I am currently a member their and am thoroughly enjoying my re-validation. My Kids love coming up for lunch at the flying club too, they have a good clubhouse, with outside patio area facing the Pan
Pop along to the bar for a drink and chat sometime