I have the Quiltcut2, and love it. One thing about it vs. the other, is that you can cut any shapes or sizes, and are not limited to specific dyes. It's fast, easy and does exactly what they show it does. I really like it, and find it's very accurate. And, it's a one time outlay of money, not an ongoing investment. I can say I've had mine about 3 years, and only use it for cutting. I do think it won't be long and I might consider replacing the matt as it's showing a bit of wear now.
I did look into purchasing the other, and decided against it for a couple of reasons: ongoing investments in dyes, inaccurate dyes (see below) and handle is hard for me to turn with more than 2 layers of fabric. I researched the tool, and as part of that, joined the Yahoo Group for it. There were many, many complaints on there about inaccurate dye cuts. That alone was enough to steer me away, especially for the cost. Surely that is no longer the case, but it was when I did my research. I would recommend joining this group to get current owner's perspective on the tool.
Sorry, I'm no help to you at all. I know many people love their cutters, both of them, and each tool has good and bad points. I guess you have to decide which points are more important for you and the way you work.