I have no personal experience of them though I have heard mixed reports. They seem to have a good level of stock but I understand they can be pricey.
There are a number of Saab Specialists in the Bristol area - I have heard that Economy Saab are good - http://www.economysaab.co.uk/ - again, I have no personal experience - this is just what I have heard.
The Workshop in Hanham have just oppened a showroom. They previously only specialised in Saab servicing/mechnics, etc. Worth a look.
The two Saabs (both 9000's) I have owned were both bought from St George (when they were at there old site.
The Sales Director Julian is a good guy to deal with, and the company owner is a real gentleman. I find you can get a good deal on some of there stock, and have been very happy with my own two purchases.
By all accounts, and my own experience, don't buy from the Finance Director (who doubles up as a sales-man) if he us the same guy I dealt with. His name is Darren (initials DD). He has a desperate attitude to customers (and other saab dealerships so they tell me) and swore blind that he had a 40 point service record on his desk from his workshop for my last car, even though the oil was dirty (and service book unstamped - with service due) when I checked it at home after the sale!
Of course there is a possibility that their workshop issued a service record without actually doing the work, but in my judgement
Mr DD is a dodgy dealer, who failed to deliver on a number of pre sale agreements I had made with him.
Don't let this put you off, as Julian fixed up all my issues, and they paid for me to have a full service via a Saab maindealers to fix the lack of service, so I was happy except for my DD experience!