It is an amazing lens. I even sold the A* 85 because I preferred the FA*. As far as results go, I'd say it's about tied with the A* 200mm Macro in my eyes, which is saying something.
BUT, and it's a big but, I quite often leave it behind because of its size. I don't so much mind the weight, but especially with the hood it's massive. Without the hood it's not too bad, but since it's susceptible to flare the hood is usually necessary. I'd try another hood if I could find a bayonet hood that worked on it, but I hate screw-on hoods. The fact that it's big, silver, and conspicuous has also caused me to leave it behind on occasion. It just screams, "I'm expensive". If it had the size, and fit and finish of the A* 85 I would never think of selling it.
On top of all that, I'm trying to not be so attached to my gear, and instead buy and sell more practically these days. I do still use the FA* more than all of my lenses except the 31 Ltd., but leaving it behind because of it's heft still occurs far too often.
I put in an offer on a 90mm Summicron-R on ebay, and if it's accepted the FA* will have to be sold. It's the same weight as the FA*, but it's smaller, has a built in hood, a minimum focus distance of 68cm, and has quite a good reputation. Also, one of the main reasons I was hesitant to sell the FA* and get the 77 Ltd. was because of the decrease in focal length. With the Summicron that wouldn't be a problem. It sounds like the perfect compromise for my desires for a short-tele lens. Also, it's a Leica
I would miss the f1.4 max aperture, and the overall rendering of the FA* though
Well that's enough rationalization for me for the day
Who would have imagined I'd develop the intention to possibly get rid of my second favorite lens in a thread about how amazing it is?
If anyone wants an FA* in excellent+ condition, I may be posting mine in the marketplace in a day or two.