I don't know FC, In the Storm for...guides I put together. One of the biggest problems people see is DM 4.7 won't pick up the changes in the os java folder. 4.7 is fine for back-ups. But when it comes down to doing some real work, I don't trust it.
4.7 consistently gives me an update note for languages for my Bold, which many have now discounted as some programming flaw.
Aside from that, both 4.6 and 4.7 don't seem that different when you're just clicking around and trying to do the stuff you want it to (like backups, synchronization, media management with Roxio).
As it stands, there's no real "benefit" for moving up to 4.7, unless you want bragging rights that you're the most-up-to-date in DM software.