Simply getting to a finder window where I can do a "Get Info" on a hard drive requires finding your way to the "Computer" finder window, which requires digging in menus or right click context pulldowns on window titles (?).

While it works on folders, it just gives you a question mark for the size while it is working out the size of the sub-items on disk with no indication that it's actually going to change that.

So yes, there are alternative methods, but they are no more friendly to discoverability as the Apple Menu method.