I also have quilt wizard and like it alot. You cannot design your own blocks but you can audition different quilt designs. It also has an online quilt of the month download. It has plenty of fabrics but it soon becomes out of date. You can rotate blocks, combine different blocks to see how they work togather. It says it has 200 blocks but I dont think it has near that many.
It has instructions for piecing and paper piecing but they are not the latest methods so you cut out each piece instead of shortcuts to do many at the same time.
It is worth the 30 dollar cost and is easy to use especially if you are not computer savey.