I like the Tiger, but I find it really twitchy in pitch (pitchy-twitchy?). That, of course, could be a hardware issue on my end and nothing to do with the flight model, but I did want to mention it, as my understanding was that the F-5 was a bit sluggish in pitch in real life.
I managed to get it to stall just fine, too - by snapping one of those 720 degrees per second rolls. 
On the whole, though, definitely meets my DC/SC/CJ quality expectations, so it’s all good in the hood.