Ive tried several versions of neatrom, up until v4.7, and I have to say, that sooner or later they all lock up on me, and nothing but a hard reboot will work.
Ive flashed a few different roms of late, Alliance, Avatar, Paranoid Android, AOKP and none of these lock up. I'm not criticising Neatrom, just making an observation.
At the moment, I'm using Avatar rom,with Dorimanx v9.31 kernel, which I find very stable, apart from the fact that it regularly turns BLN off!
I'm getting the itch to try something else though, but havn't decided on what yet............