I have a Firestar .45, and I think they are solid, reliable pistols. They are old-school single-acting with a manual safety but no grip safety, so you have to get used to carrying them cocked and locked. Also, when you remove the grips for cleaning, be careful not to push the safety lever past the "fire" position, since the detent and spring will fly out and get lost in the carpet.
Only problem is spare parts are extremely rare, so my Firestar is in "semi-retirement" to keep me from breaking it. If I were in the business, I'd make a parts kit for it and market it to Firestar owners, since it remains a popular niche market. (Although I've never seen one break, so it might be a slow seller!) I really wish Taurus or someone would pick up the license and start making them again.
In the meantime, enjoy it. If the FS+ 9mm is anything like the .45, it's got to be fun to shoot. Congrats to the Mrs.