We have both the road morph and the mini morph and love them. With the road morph, I can pump up my road tires to the correct pressure, I like the little piece that flips out for a foot hold, how the handle turns to a "T" to push easier and the pressure gauge comes in handy. I currently have it hanging on the bottom side of my top tube only because I was using both of my spots for a water bottle and my lock. I am moving my bottle to the handlebars soon and will put the pump on my downtube. As for the mini morph, Kitsune06 has it on her commuter which is a more compact geometry to mount and doesn't need the higher pressure so it works great for her. No gauge on that one.

goodluck!