Again with the uninformed claims of "truth".
1) 2016 Sport Premium
2) From new - 2+ years and just over 12k km
3) Essentially flawlessly. It has its quirks, like any car, but knowing what they are is most of the way to manage them. E.G. You need to know that a DCT is not an auto and drive it as such, otherwise it will seem flawed and jerky. My only beef has been the mediasystem, which sometimes is laggy or refuses to read a USB.
4) I've only used a dealer, so have stealer prices. I've had no problems; the only thing was discovering half way through the Phase 1 run, they changed the door seals to be fewer then the first Phase 1's production run. It doesnt really make a difference - none i can notice - but i got the replacement seals from Renault Aus.
5) Make sure it has a proper service history either at the dealer or a good indi. If you buy a ~late 2014 onwards model, it should have the 5 year warranty, which may give you some peace of mind. Some of the early 2013's needed a recall to fix the spoiler and prevent it falling off - if you look at those years, check any recalls have been done.