Can't be bad for £1200 with a full history. Beats half the mileage and no history. Just keep your eyes open on ebay for bits of trim, don't be afraid to contact any sellers that are breaking full cars. At that price, it's worth spending a few quid to fix odd bits.
There are companies out there that do repairs to seats, it's not expensive if you can take the seat out yourself and dismantle it. You can even get the bits to repair them yourself, if you're handy like that. I think the Jazz seats are repairable, unlike the injected foam types you find on some modern cars.
Steering wheel was really tatty on our high miler, I bought a nearly new steering wheel for about a tenner. Everything else was in pretty good nick. I always had intended to take the gearknob off, mask it up and respray and lacquer the silver disc in the middle - never got round to it.