Zagato is a beautiful car - did a trip a few years ago in Germany and a chap brought one along. Great sounds too from the V12. OVerall though, it's no much different to drive from a DB7V12Vantage, and from what the owner said they preferred the (then current) DB7GT to drive. (Well these folk always seem to have several Astons in the garage!)...
If you can find a <1000 miles car then it's probably one for the collection, but for driving I'd take a Vanquish S any day from what is said..