I rarely use my roundabout, and I should be using it! It turns so much nicer than the square green one I used to have.
I just got the Stripology mini, so have not used it yet. Love the original (XL, I think it is now called).
Creative Grids rulers are wonderful, and I like having an assortment of sizes for squares. So much easier for sliver trimming (when used with my Roundabout!).