Though I do think Cream/Clapton are overrated, they and this song are pretty much ubiquitous intro-listening psych-rock. It is classic for a reason (as are a good portion of their work). It is the song that mede me buy the best-of CD years ago, and what led me to get the rest of their albums. Since then, I don’t return to their music as much, but am glad to have gone through the catalogue. Plus, at just a few releases, there really isn’t much of an excuse not to. Take the quick journey, and you’ll be glad you did.