I'm not sure... Nano doesn't really meet my sensibilities. It seems to tend towards pantsing and improvisation, and I'm much more about thinking it through. Tried Nano once, got to about 3K words and stopped updating. In the end got to about 30K for the month, which for me is productive. My current WIP doesn't have another 50K in it; if I manage to write another 50K I'll need to go back and rip out 30K. Which I may end up doing anyway...
So, I'm considering whether it's worth going through the whole rigmarole again.