Barron’s is a lot harder than the real test. I haven’t gotten to the practice tests yet, but most of my friends were incredibly frustrated and ended up getting an 800 on the day. But, honestly, I think it all comes down to what you think and how you feel about it. If you thought the review was confusing and you said you’re rusty, maybe you should consider buying another one that explains it more clearly. While I have never used it, I’ve heard great things about Dr. Chungs.