Hi,
I've had different experiences with Subarus. I've had 3 Foresters - all non turbo - and never had any problems with any of them. Turbo versions might be a different story - I don't know.
Providing they are serviced regularly they are very reliable. I put 70k miles in 2yrs on one of them and it never missed a beat.
If you look there are an awful lot of aging subaru estates - Foresters, Legacy, Outbacks on the road which says something about durability. I have always had 30-33mpg out of mine, and thats mixed driving intown traffic and A roads/motorways.