I saw this thread and figured I pop in and give my review of the Otterbox Commuter Series case.
I have used 2 cases on this phone before purchasing the Otterbox. My first case was the Snap on Gel Cover from Verizon. As seen here: Review: Verizon Snap-On Gel Cover for the Motorola Droid 2
I needed a holster so I gave my GF that gel case & picked up the Holster/Shell combo case for myself. As seen here: Review: Verizon Shell/Holster Combo case for the Motorola Droid 2
Both of these cases are pretty decent. I liked the feel of the gel case but it wouldn't fit in the holster. The case that came with the holster was thin and after seeing a few of my co-workers break their shell/holster combo case, I knew it was only a matter of time before mine went too. So I picked up the Otterbox in hopes that I could get better protection but still use it with my holster.
The case comes with what they refer to as "3 layer protection". Screen protector, silicon inner shell & hard outer shell.
The screen protector is a full screen protector. I previously had the generic Verizon one which doesn't cover top to bottom. The generic one does the job but you realize how much it sucks once you replace it with the Otterbox version. The screen is so much clearer and vibrant.
This silicone inner shell has a nice feel. The silicon comes thru where the hard shell breaks away at the middle. All the buttons and ports are covered by this silicon and there are pull-away tabs that reveal the ports for charging and headphone jack.
The hard shell is the where the case starts to fall short for me. It has a nice finish to it and it's made to be smooth so it will slide in & out of your pocket with ease. However, for me, that's also a downfall. I have nearly dropped it twice while holding it my palm. It literally wants to slide off my hand. Also, the tabs where it locks onto the phone seem to be improperly aligned. When you press or squeeze the unit slightly, you hear a "snap" where those tabs make contact with the keyboard side of the phone. It's a little difficult to explain and if I get time I'll make a video showing the problem but for now lets just say it's quite annoying.
For those keeping score, it did in fact fit in the Verizon holster. It's tight but it fits and that is my current set up.
Hope this helps. Any questions, feel free to ask.
Edit: On a positive note for the hard shell, Otterbox took into consideration the space our thumbs need for that top row on the keyboard. The shell is recessed in on that side to allow for easier access. A nice touch. Only drawback is that it takes away from the symmetry of the case and as a result, the left side resembles the unfinished look of the bottom of the Droid 1.