Default Is Really Worth The try to change To KitKat, Theres not many roms for tmo note 3 ?

Guys How many of yall Have Cstom roms from kitkat and what are they. Its really worth to change to kit kat now, or later?
For Tmo note 3 ?
LG G2x ( Sold )
SG S3: ( Sold )
SG S4: ( Wife Took Over )
Dell Streak 7 ( It Still Running Good )
ROM: Flasholic (Addictive to flashing and Caffeine)
KERNEL: ( Anything That Makes it faster )