I also did start to notice some of the menus that are hard to read through the carbon fiber, but I started out with V4+4.1.1 patch so I wasn't aware of how V4 looked on it's own.
I may experiment tonight and flash back to Rooted Stock ED1, then install just V4 and get a sense from that before I put the patch back on. Any word on V5 or what types of continued enhancements will be coming along.
Battery life so far for me, started my phone at 7am, push email from Gmail and Exchange, installed a few updated apps and made 2 calls, currently @ 85% on an extended battery.