In terms of an actual good review of long-time ownership you’re better off reading owner groups like forums/subreddits etc. Some reviewers will revisit long running models but it usually gets less attention. If you want a view into long-term ownership you have to get it from someone who’s owned it long-term
You gotta look into maintenance threads and buyers guides. Less opinion pieces and more gleaning from what people are dealing with. Anyone’s gonna try to sell you if you ask for an opinion.
Look through an e46 forum everyone will tell you they’re reliable if you replace every piece of rubber and plastic every 5 years. Which is partially true but that’s a ton of maintenance itself. You’ll know you’ll be dealing with cooling issues, and there’s a million threads on subframe issues etc.