I have been using Villian 3 for several months and I love it!
Only issues that I know:
- Device Encryption does not work and blocks the phone (you have to come back to original stock rom to be usable, the phone cannot boot)
- Touchdown app does not sync calendar (but email works so I'm fine with it)
But battery life is awesome compared to stock one, is very fast and I you like TW like I do is great cause you will get TW experience with better battery and faster
Yes, device encryption is unfortunate...
I'd not turn it down if it worked... I decided to wait until ICS, and then see if the inbuilt stuff there works. If not, I'll have to figure it out.
But at the end of the day, I wouldn't release the rom like that, for one reason. Encryption is only good if you are using a secure rom. While VR is in many respects more secure than most ROMs due to using non public platform keys, it still permits root access.
Since exchange encryption is usually enforced by your IT admin, I don't think people should be using this ROM for work purposes to connect in, given it is rooted...
With root, you can just dump the data off the running system