Marvin's "Let's Get it On" album is, by all definitions, a classic. Who hasn't heard the title track? Personally, my one complaint with this particular album is that a few of the songs don't seem to go anywhere, but the pleasure of hearing Marvin's voice is more than enough to make up for that.
After you've listened to any of his albums enough, you start to feel like you've got a personal relationship with him, because his voice is so honest and expressive, and this album is certainly no exception. But what makes this deluxe edition so great, in my opinion, is the inclusion of all the bonus tracks, and included among those are a number of absolutely killer instrumentals. His earlier "Trouble Man" album (which is one of those "hidden treasures," if you ask me) proved that Marvin was no fool when it came to cooking up a fine instrumental, but the ones on the deluxe edition of "Let's Get it On" blow that album out of the water, if you ask me. They're full, they're funky, and they're exuberant.
We all know Marvin for his voice, but if he'd ever released an album of instrumentals of the quality we see on here, I think it'd be ranked among his best. For me, at least, they're worth the price of admission alone, and that's discounting all the other bonus tracks.
These "deluxe editions" of albums that've been coming out over the past few months for the most part tend to be absolutely excellent in terms of sound quality, liner notes, and the sheer volume of music you get. This version of "Let's Get it On" is no exception. If you don't mind the somewhat steep price, and you're a fan of Marvin, by all means buy this album. If you're new to Marvin, it might be better to buy just the album itself (as well as his other classics such as the inimitable "What's Going On" and his heartfelt "Here, My Dear"). If you like them, then shell out for the more completist "deluxe editions."