I have Hyperdrive RSL7 installed and been playing with it for a day now and seems a bit buggy to me. First, Titanium Backup has some problems running. When I am selecting apps to restore it crashes. Finally, after a long time and working with it I was able to get my apps restored. Then today I went to phone>settings>display>brightness and every time I clicked on "brightness" I got "unfortunately, Settings has stopped". Does it every single time. Then another time today can't remember what I was doing but I got some error like Si.(something) has stopped working (can't remember exactly what it was). I clicked OK about a hundred times and it just kept giving me that error with the OK. I finally had to do a battery pull and reboot it to get it stopped. So, for now, I am going to switch over to JellyBean 4.3 and see if it is any better.