I have the Quilt Cut2 and I use it if I am cutting a lot of the same thing, but if it is just a few straight cuts then I use my rulers. I don't have a place to keep it set up so I probably don't use it more for that reason. I have dropped my ruler (from Q Cut2) a few times and it isn't so perfect any more.
I can say that the Co. is super nice to deal with and will answer any questions.