My experiences with R2 Print Management have been mixed.
Key points are
There is NO way to set the default with it, so if you have a local printer or want to deploy more than one to a room, you may want to run a small vbs script when the user logs in to set the correct default printer.
If PUSHPRINTERCONNECTIONS.EXE is causing reboots, or not working, check your Anti-Virus settings. I was getting this problem, until I unticked a box in McAfee v8 that stopped users from running .exe files in the windows system folders.
Other than that it seems to be pretty good.
Regards,
Anthony.