in an good way or bad? how does it run?
Bad.
Leveling is boring, kind of slow for a high rate. Drops are almost non-existent. Some players have been playing all day without getting a lvl 100 item.
Even if you manage to get the full lvl 100 set it doesn't matter, their stats are slightly higher than those of the lvl 50 kit so you have to rely on your pet. Even the following kit is crap so the pet would still be needed until you get higher stats from leveling.
As a wizard, after lvl 50, I started hunting in one of the highest level caves. I couldn't do anything to the mobs but the pet could. It doesn't make sense. Why would anyone go to any lower lvl caves if you can kill the big boys from the beginning?