I will tell you this, if you go fly one, you will go buy one. They are a $60,000 dollar ride.
I've got time in most of the RV line, with a few exceptions like the 3,9 and 10. I had never paid attention to kit built aircraft until a trip to Oshkosh several years ago.. We saw a field of RV's which caused to me find a ride in one..

First Rv flight I ever got was in a 6A.. It was a total blast and led to the purchase of our 6'.
What I would reccomend is find some people with RV's in your area and pick up a few flights with them, if they will let you.. Where are you located? I do some Rv6 transition training.. If you get on the Van's site, they have a few "company authorized" instructors - while most of those guys are extremely hard to line up a few flights with as they stay booked many months out..
If you are worried about conventional gear - go out and rent a Decathlon and fly it until you are comfortable with it.. If you can fly/land a Decath safely, the '6 will be like falling out of bed.. People often make a joke of people logging Rv6 time as tailwheel time as it is such a tame little airplane.
I think most of what avbug has said is true, with a few exceptions.. Billing it as a two place Cherokee is completely false.. While the RV's are extremely docile aircraft, a Cherokee it is not. If you hop into an RV and intend to fly it like a 140, your going to get yourself into trouble..
Also his thoughts on aerobatics - while aerobatics can be hard on the instruments, if you have the proper instruments in the a/c they will be fine.. Often times many RV builders put these instruments into the aircraft, so if your looking at a used one, pick one that is so equipped... Also, aerobatics, if done correctly - are a blast in the RV.. Is it a Pitts or an Edge 540? No, and it should not be flown like one, but if you want to simple rolls, loops, stall turns, etc - they RV has no issue's with them - nor are they any harder on the aircraft than general flying..
The aircraft is great for many things.. You can cut up in it, it will fly slow, it will fly fast.. It can land very very short.. Good luck with your search, you'll love it.
