Well... after running the beta ROM released late last night for the whole day, I must say it is very stable, no way for me to break it. ran all my apps no problem, ram/memory is good.
Co0kie slowed it down a little.
GTX ran faster... even though it has cookie as part of the theme.
Everything works just like the previous releases.
The only thing I didn't like was the dialer... but CMYLXGO has something for us in the official release I guess
Board so Im going to play around w/NRGZ new GTX ROM Til the final release.
PS: don't get your hopes high on a 6.5.x yet though... stability!