I have a Stock 1(dont see many of them around,has short rails,bull barrel,chrome finish).Its a fantastic gun,very accurate and I cant remember last when it had a malfunction.Ive got about 20K through it.Ive used it for a season for IPSC production and was very happy with it.
At one stage I also had a CZ shadow,but much preferred the Tanfoglio,way more sophisticated and better finished than the CZ.I sold the Shadow.
A few of the guys at my club have the Stock 3 which is also a very nice piece.
Another factor in getting a Tanfoglio is that Freedom ventures give great service and have all the parts you may need(not that Ive needed many for my Tanfoglio!