Put it this way. It's going to seem like these cars have a lot of issues because people will report issues to get them resolved, or they just had a bad experience, so you won't really see the number of people who don't have issues. Basically, my car has been tuned since 5000 miles, intercooler and increased boost. with a host of other things. my car now has 75k miles and the only thing I have ever done to the car are oil changes and routine maintenance. I'm not easy on my car either, I do track my car and carry close to above 400-600 lbs of cargo every week in it. I always use shell gas because the nitrogen additives can help keep the injector nozzles clean which is very important. Once I hit 100k miles, i'm going to have the intake valves and host of other things cleaned of carbon deposits. I would recommend getting the Mountune breather plate install since it helps separate the oil from the vapors in the engine.
Watch these 3 YouTube videos from engineering explained. A lot of issues are from people who drove their car incorrectly and damaged the engine because of it.
I don't see any reason you shouldn't buy this car unless you don't like front wheel drive.