I tried the KatKiss Jelly Bean ROM and didn't like it, but this KitKat ROM has breathed new live into my sluggish TF101. I guess it's the smaller footprint of KitKat. Not sure about battery live since I just installed it last night. Build #15 doesn't have Location based WiFi, but hopefully that will be fixed. The camera won't do PhotoSphere or Panorama and Gallery crashed when I tried the edit feature. But I'm not a tablet photographer (laugh every time I see one), so this is my daily until something more tempting comes along. If you dread reaching for your sluggish TF101 lately like I have, do yourself a favor and try it. Update: v16 of the ROM fixes the WiFi location bug. I'm still having same issues with Camera and Gallery. Battery standby time is 9 to 10 days (minimal use). Still quick and responsive.