It's terrific and I would use it in my menu bar, but like other people, I wish (1) you command-mouse-click drag it to another position in the menu bar (like other utilities like MenuMeters) and (2) lower memory consumption. The latter is probably going to be really hard, because I've never seen a GUI app on the Mac use less than 200+ MB of VM. Still, I keep hoping...

Were it not for those two issues, I would keep this in my menu bar and pay a donation to the author. It's otherwise a really cool utility.