I owned and competed in a CAP 10 for a couple of years about 5 or 6 years back. I really enjoyed the CAP 10 for it's versatility. Side by side and a big turtle deck, descent speed and range, and aerobatic. It was more capable than a Decathlon (maybe even slightly more than a Super Decathlon).
It can be a handful on rollout with the brakes being situated how they are during a heavy crosswind. There's great forward visibility making for easy landings, but once on the ground the fun begins.
A caution about the CAP 10. If you're looking at a B model be aware that there is a 55 hour recurring inspection on the wing spar due to several failures. The failures are thought to be due to hard landings by the factory in France, but there is also evidence to suggest it may be to overloading during aerobatics. Snaps, in particular, were suspect, and the FAA lowered the snap speed when they issued the 55 hour recurring inspection.
Most of the Bs are old and made of wood... They say that wood forgives but only for so long....
The C models have a carbon fiber reinforced spar, and if you're serious about owning a CAP 10, I would limit my search to a C model or a B that has C wings.
The CAP 10 is a great airplance: fun and nimble, but beware of the B wings.
If you plan to fly aerobatics and have no prior experience, regardless of the airplane you choose, please go up with a qualified instuctor and get spin training. A botched manuever, if left uncorrected, will often cause the aircraft to enter into a spin. Recognizing the nature of the spin and having an appropriate natural reaction to proactively recover can save your life. Nearly anything you want to learn is fair game after you are proficient with spins (as long as you're within the approved flight envelope of the aircraft).