I have a 52 plate estate, for me it is a very good car and with prices as they are represents a bloody good bargain! I have moved things like 3 piece suites around, strapped enough wood to rebuild a flat roof to the roof rails, fitted an entire demolished flat roof in the back.. I even took it to the south of France loaded up with 2 bikes, snowboards, huge tent and all camping equipment all in the boot! (no need for a roof rack or bike carrier!). It also fitted 3 blokes and 3 bikes all inside the car to go to Wales!
It's comfy, full loaded with climate control, cruise control, speed limiter, parking sensors, auto dipping mirrors, auto wipers, tyre pressure monitors, Xenons, 6 speed box etc. I get 50mpg on a long run and low 40mpg on my daily run (6 miles of country lanes)
I've done about 20k in mine, the car is now on 100k and have done the following (myself):
Rear suspension bushes (common fault, was getting a knocking over bumps, bushes turned out to be shot! got the bushes off eBay and also a tool to fit them. Easy DIY job)
Boost pressure sensor - Got an injection system fault warning on the dash when cruising on the motorway and car goes into limp home mode. Is fine for a few minutes after restarting then re-occurred. Took a gamble with the sensor at £30ish and it paid off!
Stripped and dried xenon ballast - One light stopped working after I left it in an airport car park whilst going snowboarding. Took the light unit apart and dried it out and it worked again. (new parts were looking at almost £300 from Renault)
Rear discs, pads and wheel bearings - one rear calliper started sticking from the handbrake and ate the pad and disc. Discs and bearings are all one piece so more expensive than regular discs but reasonable on eBay.
Track rod ends - one was very worn
Other issues:
Common fault - headlight washers stay sticking up if you wash the screen with the lights on. One of the tyre valves was leaking so had to get a new value unit from Renault (includes the pressure sensor - only around £20) but its about £80 to had it coded into the ECU so until I do that I have a warning on my dash constantly.
The turbo issue is down to the intercooler and piping, on the early versions they split, overspeeding the turbo and making them eat the bearings. There is a revised intercooler with a strap (early versions bow across the top and bottom) and metal piping (I'm not 100% on which piping was revised)
The 17" Silverstone alloys are supposed to be quite weak. I have them on mine and have no problems but apparently they buckle easily on pot holes.
here's mine in the Alps:
