I now have two characters in ACT 2, my original Ranger who is now dual pistols and a Summoner/Toxic mage. I will most likely sideline the Ranger for a bit as I really think I will need to respec him. Frost is awesome against trash mobs or even champion packs and the ricochet build is fun but it falls way short on Bosses who seem to be immune to freezing.
I am running the Toxic Golem and Skeleton Archers as well as using Parasites on the mage. Parasites is awesome so far, however I am still a little confused on how it works. For some reason my possessed monsters suddenly seem to die when I possess something else but not all the time.
At one point I had six or eight of the rail-gun mobs which was really cool but then other times I can only have two running. Typically I lose monsters when I am possessing the really large ones like the guy that swings the mace or the one that sucks the life out of you. I cannot figure out what the limiting factor is. The most fun was when I possessed one of the monsters that sits in the opaque shield and summons zombies, I literally had a horde at that point.
I am also using Plagueburst which I really like as well. I am also running a modifier that causes a ton of health globes to drop. One issue with the mage however, is the more you use willpower abilities the more your rage builds up, using the standard staff I had no way to dump the rage so I am trying a pistol/catalyst load out right now. I slotted in the Auto turret and use that to dump rage and start my willpower regening. I may try Gunslinger as a replacement or try Infinity Blades with the staff again.
Playing Online is still a major PIA, servers will still really wonky yesterday. I really should just move to offline but I am loathe to start from scratch again, particularly since I have a really nice purple I found last night, have total of three now, and would hate to lose them so soon. If the dev's cannot sort this out they should at least give some options to import your online characters to offline. Oh and be careful using the rail-gun skill, I tried it last night and it causes major screen issues, apparently this is a known problem that was never fixed.