The honeymoon with mine didn't last very long. I have a real hard time cutting straight with it. I noticed the rulers they use with it are like the stripology with a slot the cutter fits into, so that would for sure take care of my "wandering" problem.
I may not be holding it quite right, and putting a bit too much pressure to one side instead of directly over the blade. I had a lot of strips to cut with my last project and finally put this one aside and went back to my regular cutter to finish up. I'm not giving up on it yet, and I think I'll love it when I am using my stripology ruler.