Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: A must for your TYA collection

I saw Ten Years After early in their careers at the Fillmore in New York. Then I saw them at Woodstock and then at The Arc in Boston. They are one of the greatest rock acts ever, live or in the studio. The unfortunate thing about this album (and this is only my selfish opinion) is that the engineering (overall sound) quality lacks here. For the most part Alvin Lee fulfills his role as one of rock's greatest guitarists. "Choo-choo Mama", "Good Morning Little Schoolgirl" and "I Can't Keep From Crying" knock me out. "Help Me" was the first TYA production I ever heard. It's up to par here. I have to say that their signature song, "I'm Going Home" is not the best on this album. The Woodstock version remains the best rendition I've ever heard. That's not becuse I was there but it is just so complete in terms of defining the group's rock and roll abilities. As I said, if you like TYA, buy this disc.