I see people say that a lot, but I have never had the first bit of trouble using version 4.7 with my Curve.
I've had nothing but trouble with 4.7.
Another reason that I always recommend 4.5 or 4.6 is for upgrading/downgrading OS issues. Mainly the one that gets asked over and over again about DM not recognizing the new OS. Most newbies don't know that 4.7 auto-connects to the internet and searches for the latest carrier specific OS for their device.