Hi there, I can understand why you would form an adverse opinion about these types of cars - however.
I was a French car phobe myself until around a year ago, when due to changing family circumstances, I needed a larger car to replace my beloved Ka Luxury.
After looking around, I found a 4 year old car, with 20,000miles on the clock, fully warranted mileage, and full service history being sold by a non-renault dealer for £10,000. I bartered hard and got a year's warranty plus a service and cambelt change included, plus a great trade-in price for my car.
Touch wood, it has been fine - loads of space, great comfort, good & smooth power delivery all at fuel economy never below 35mpg.
Like all cars, there can be good ones and bad ones out there - its important to check them over thoroughly before purchase.
The cars are still in production (mainland Europe only), so parts aren't an issue (except for price), but the biggest problem is that dealers are completely unfamiliar with a very rare car - so make sure that you have a Renault dealer nearby who has at least serviced one of these cars (only around 1400 were ever imported). You don't want to be paying for trial & error.
Don't expect to run one on a shoestring, they were between £20-£32 grand when new - but choose wisely, look after it, keep it under warranty, and you should have a car which is often admired, but never repeated.