I've had many Subarus, and this is my last one. After replacing the head gasket 4 times, I'm done. (The tranny went on another one I still own). These cars don't spend much time in the shop but when they do, it costs me 5-6 car payments. Also, after reviewing options now (in 2009), the OB has not kept pace with other maker's improvements. It's still the same car in 2009 as it was in 2002 with a few different options. Same engine, same power train, same reliability issues until someone proves otherwise. Also, the engine is underpowered for its size.
All wheel drive makes it seem like you are driving on rails. Very secure feeling.
Get rid of the flat four engine. It's outlived its usefulness, IMO.