I'm still on Verizon's stock 6.1 ROM but HAVE enabled the GPS.
FWIW a few more favorite apps I have on mine:
- C-ApiSRO (XM and Sirius over your internet connection... must be a paying XM/Sirius subscriber)
- PHMRegEdit - if you're already flashing... you'll be comfortable with tweaking the registry too
- PPCPimBackup - great back up utility
- vjcandela - small app that turns your camera flash into a flashlight (has come in handy more than once)
- zaptit!12 - I have this mapped to a hardware button to close apps completely