I have extensive experience with both vector based and paint type programs. I found EQ7 to be counter intuitive, however, the program is very powerful and worth the learning curve, but Photoshop & Illustrator background doesn't help. I usually start with paper, go to Illustrator to refine, then go to EQ7 to refine the block(s) some more & lay out the whole quilt with borders & colors.
Use the advanced search on the Tutorial board for the string: "Rhonda's Electric Quilt Class". There are 20+ classes. You can get a good idea of the basics from there. Don't know if there are any trials out there.
Quilt in a day usually has the best price by far. She can't advertise it, but put the program in your basket to see the price.