I'm the BES/Exchange/AD admin for our enterprise, and we have Rove deployed in our environment. If you've got a solid AD with locked down perms, it's a great addition to your admin toolset.
You install it on a server in your environment, and depending on what you use it for (i.e. Exchange, SCOM, VMWare, BES) you'll have to install some of the management tools alongside with it so that it can 'access' those app environments, but once you've got it configured it works great. I'm not a salesman, either, but the story I always tell is when I was on-call and at a college football game last year (v4.1). I got a notification about a downed Exchange service - DAMN! I fired up my BB, got into the server via Rove, restarted the service. and Exchange was running again - Didn't have to leave the game.
My co-workers have had similar stories. Our UNIX and Datacom folks like it 'cause they can do SSH and TelNet and get in to our routers if need be.
With the latest version you can even do RDP to a server (although that's kind of crappy and not the best way do to much...). As far as BES goes, you can install the User Admin Service and do all that goes with that. I won't say it's 'perfect', but as far as being able to do that kind of stuff, I haven't seen anything else like it. Eventually I'm sure there will be, but not right now. At least give it a try and see what you think. I'm honestly not a salesman, just an enterprise admin who thinks he's found a real time & labor-saving tool.
The vendor site is actually:
Rove - Extending IT Reach and they're out of ottawa, canada.