Bear in mind that this system will be RAF-wide soon ...
Err, no it won't...
I also though that FL was pretty good at L-O-O when I was there, it didn't crash, was quick enough and a useful management tool to boot. I've seen plenty of worse attempts at this sort of software. Most of the issues are with station network capablities and not the programme.
STARS likewise is a solid bet. Lyneham's had it for a while and after a few teething issues, it's turned into a useful bit of kit. I believe Odiham feel the same way, but standby to be corrected!