That 964 is stunning!
I've had a couple of Porsches (964 C2 Manual and a 993 twin turbo).
The 964 was beautiful to drive and sounded awesome. The 993 Turbo was SO fast it was unreal, however it lacked the intimacy of driving experience provided by the C2.
BUT, as has already been mentioned, when things go wrong they get VERY expensive VERY quickly!
And there are only certain specialist places that can help apart from main dealers.
However, as long as you go into this with your eyes open then these are very rewarding cars in every way...