Nothing so far.
I bought the car because whenever I took my old 900 for a service at the main dealer, where I received good service and reasonable costs, they often lent me a 9000 for the day. I enjoyed driving it so much I went and bought one.
The car is very comfortable and very different to the 900. It is great to have the climate control on a hot day or just to clear the air on a long journey.
My 2.0 Eco is a little underpowered compared to my previous car and I am seriously thinking of having an intercooler fitted by Abbot Racing in Essex to boost the output to 190 bhp.
Insurance costs seem to be rather high but a reasonable quote was obtained through the SAAB owners club.
Cruising tends to return around 31 mpg and it is useful to have a constant readout of fuel consumption as this encourages a lighter foot.
No costs yet but I would not expect any. Both my previous SAAB's were pretty reliable.
I too have recently (Dec 23rd 2002) purchased a 9000 CSE 2.0 LPT and find the standard 'fit' to be a little underpowered. A brief search on the i/net show lots of enhancements and tweaks that report to give massive improvements. e. g Hydro Injection Systems.