I have used SA Basic and SA Pro for 7 years on 2 separate sites. Very few glitches and pretty stable. Blackthorne software not so. A ton of bugs and glitches and very slow support of any kind. Of those 7 years one of my sites has been as a gold level seller. I actually received a telephone number and a dedicated account representative to call for trouble. I still had very slow support for the software programs! I'm sure this software will be great someday! I just don't have that kind of time to wait!