@metzo_paino: Congrats! I am only a few days post YOU DEFEATED myself, and like you I have a huge backlog...but I'm doing NG+ anyway. It's a whole different kind of fun this time around!
NG+ is really fun. I made it to Sen's in the same time it took me to get through the Undead Burgh the first time. The increased health and damage doesn't really get in your face until the latter half of NG+ but it mixes up the combat when it does because you need to use variations on the tactics that saw you through NG.
If you're still not sick of it after that, NG++ makes you feel like a level 1 newbie since even basic mobs are difficult against your max-level equipment. Praise the sun! \T/