I love my Accuquilt. I bought it when it first became available to buy and have lots of dies. Everything you need to know how to use it is on Accuquilt youtube channel. Bonnie Hunter has a ruler she designed to make all the cut sizes of her mysteries. I've noticed since her ruler has been available she uses it in every mystery. I know she has a studio model and does most of her cutting using that. She always uses the basic size of units and there are dies for those sizes. I have found that having an exact 1/4" seam the cuts made with the Accuquilt do not need squaring up after sewing the blocks. If they do then my 1/4" is not exact.