I had one a while ago. As said above, they can be juicey, but to be expected for a big car with a turbo lump in it.

Mileage isn't a problem for them, just make sure it's been well looked after. I have seen them do head gaskets, but they're a pretty tough old engine really.

Mine was great, went like a mad thing and sounded ace with it. Performance bargain at the moment, and usually pretty well equiped to boot.