I should add that there are two very important things that you should do to make sure you have a successful experience with any of the twister tools:
1. When you cut each block for one row. Stack the first block on top of the 2nd block, make sure you keep them in the order you cut them or you will have a jig-saw mess. Just for safety's sake, use safety pins to keep the blocks attached in their correct order until you reach your comfort level.
2. Make sure you put on borders and remember to cut your first block using those corner borders. This is very important to the process and your success.