I love EQ6 for all the reasons that everyone already mentioned. To be successful you must like to work on the computer. If it is a chore, it is not for you. Second, the tutorials are a great start as is going through the workbook. But very few people actually do that. I highly recommend enrolling in an online class through
http://www.quiltuniversity.com. Start with the basic class and grow from there. Also, if you will only design 1 quilt each year it will be difficult. Just like using Excel once a year. Painful. I use it anytime I have an idea for a quilt or a block. This keeps me in practice and gives me a good starting point to future quilts. I also design for other people just because I like to.
Remember to download the fabric library that posted each month on the EQ site. You can pick up the last several years of librarys. This gives you lots of fabric options very easily.
Diana