Car appreciation... the aesthetics, the engineering, etc

They're nice to drive. Common issues are coil pack & turbo and that's exactly what broke on ours. Otherwise solid. Prone to rust at the front of the rear wheel arches. Seems like a good price.

Edit: boot is smaller than the v70 but I expect you know this

We have the same but the TiD

The diesel is fairly cheap to run, I can get 45-50 mpg on a slower motorway cruise, maybe 40-45 if I'm doing 80mph

Super comfy seats, quiet inside, decent build quality. We've had a bit of bad luck with ours so had to change a wheel bearing, the generator and some other bits and bobs

Ours started to creak a fair bit when I go slowly over bumps, esp on turns. Mechanic thought it was the bearing at the top of one of the front struts but after taking the whole thing apart it wasn't. I think it's a load of bushes that are starting to go

Go for the full fat 2.3 aero 265, more of a cruiser than absolute speed, soft suspension, ancient dynamics (came out in like 1997? and facelifted beyond hell). Have one in the family, not built as well as old school saabs, but still better than other GM stuff.
Engine wise rarely ever go wrong, coil pack get the genuine saab one or go home, ALL others will just randomly misfire and half throw a code within weeks/months, experience of saabs for many years, don't skimp on coil pack cassette.
Rear suspension has pretty crumby little bushs that go fairly often (likely more down to aftermarket parts not being that good). Budget spending a grand in the first year to take care of all the little things.
Oh gearbox cables/linkage are very sloppy compared to 9-3 and 9-3SS, might not annoy you but the gearboxs suffer as you are on the brink of nearly money shifting it all the time.