Far from the best AWD system. The only reason subaru is famous for AWD is pretty much their entire lineup is AWD only and their AWD system is straight through meaning there is no transverse engine/transfer case. That’s all. Also it’s a true rear wheel bias which is actually worse in some conditions but better for racing
thateastcoastskione of the best and if not the best awd systems you can get in a car. especially if u have a sti with front and rear lsd
also subies are known for having bad control arm bushings and struts. u can tell a subie needs new rear struts if u drive over a weird incline say a driveway and u hear a weird clunk. also like someone said before watch out for the years and models that had a oil over consumption issue. i know someone who has a 2010 fozzy that has like 70k and it burns massive amounts of oil, almost to the point where it wouldn’t have any oil in it between oil changes if it wasn’t topped off. they are currently contacting subaru to see if they can fix anything.
other than that watch out for issues previously mentioned and please buy a car that was well maintained with plenty of service records and you’ll be fine. if you’re looking for a car that is purely reliable don’t buy a turboed subie because they are known for having blown turbos around 100k. n/a subies are just cheaper obviously. just change your oil and coolant often to prevent your head gaskets from going. i change my coolant every year because if u don’t the coolant can become corrosive and since subarus are horizontally opposed that coolant pools in the bottom of the heads and can make the head gaskets wear out faster. i think most of the common issues people have were covered. other than that have fun with whatever car u decide to buy.