I got my Accuquilt Go last week and spent the day yesterday cutting up fabric for 7 quilt projects. I absolutely love it. (I spent about six weeks trying to decide whether or not to get it and am very thankful for all the advice given on this board.) It is so easy to use and the shapes come out so perfect! I found it faster than I expected and was surprised that I didn't have much waste. It will really improve my quilt projects, but most of all I feel able to do lots of projects that I have put off as too hard. I am just not that accurate with my rotary cutting, especially triangles!
Regarding cost: I have been sewing for decades and mostly have had to really make do with what I could afford, always weighing if the cost made logical sense. This is one of those items that I can't make a good cost analysis for; but if you can afford it, it will really make a difference in your piecing and probably in your enjoyment factor!
I ordered mine from Fabric Hut/Amazon for $199.