Eh, the only thing I really miss about the one gun was the awesome tracers.
It did look slightly better with the ammo counter on the side and everything, but overall I prefer having more guns.
The pistol is pretty good, the shotgun is brutal up close, the smg is good for people who like the spray and pray and the machine gun is just a lawnmower of doom if you're defending a point and you're grounded. The sniper rifle seems like the most pointless, but I've seen a few people be mildly annoying with it when guarding points.
I was pretty hesitant about buying it, but I like the direction this is going. They seem to listen to their (tiny) community rather well.
It's a bit of a shame it's got such a small playerbase though.