Since I'm in the Swiss Army, I have one at home. Precise, cool
mag coupling feature, useful folding stock. It
could be even used to do some bayonet fighting, but
I'm not a friend of this practice.
Controllability in full-auto is not bad, but better stay
on the 3-burst to save ammo. If you want a controllable
full-auto gun, get an AUG. Also, scoping the rifle can be
tricky and is usually quite expensive.
The main thing with that rifle is that we can't use it as
makeshift ladder anymore like the SIG 510/AMT thingie (actually,
the Stgw57 in Swiss Army). Also, the cartridge lacks
long-range punch.