I felt a bit like this at first playing beta, I tried it then left it about a week. But, when I got into it and realizing I was just playing the 1st stage of the game I started to enjoy it. I played each character over and over everytime they did a reset. My life very rarely got below half because you were always getting life orbs when you kill something. I dont think this will happen in the retail version.
I'm really hooked now and have taken the day off, Tuesday (prob wont get on the servers lol)
I think it will all come together when we get into the real game.