There's better stuff out there, but ease of mixing goes a long way.
You wouldn't make a shake out of only Metabolic Drive and call it complete for pre-bed, would you?
No, it needs other stuff.
You could, conceivably, just pour it in milk and pound it. Plenty o' calories and easy as hell.
Bottom line, if you've got it, use it.
If you're interested in other stuff start with a quality protein like Metabolic Drive and go from there.
(I liked it when it was called Grow! Much easier for my lazy ass to type)