FA can't be TOO bad if FT-86 speed factory is damn near STIs with KWs on them....
http://www.ft86club.com/forums/showthread.php?t=22096
After driving in HPDE as an enthusiast and instructor for years now - FA, KW, and GC are on my list.... Why?
FA I had on my S13 SR car, and after proper adjustment this old ass car that'd have expected to be creaky, rode better than my E46 M3 did (on stock suspension). Had a lot of adjustment and seems to be of good quality. I had no issues, nor complaints.
GC I had on my E36 M3 and LOVED. Easy company to deal with too. The also come with camber plates AND the strut bar for about $2200 IIRC, slightly more expensive than KW but you get a little more too.
KW because they were one of the few companies first to market and did REAL research, not just slapped on Impreza based stuff and called it good. However I've NEVER owned coilovers from them previously.
At the end of the day FA looks like the best deal. I like the idea of bang for buck. More importantly, I'll be tracking the car 6-10 times a year but I know I'm not and never will be a race driver, so I probably will never note the difference between them and KW/GC, and therefore I'll feel like I'd have wasted money.
If you're an EXCELLENT driver, you
might notice a difference... And even then... you'll have to decide if its worth 2x the cost.
I have no opnion on BC, Stance, K-Sport, Megan as I've never used them before - I have nothing against them but I prefer to never speak about products with which I do not have personal experiences with (something I wish many more would do).