Stay awesome, antirez.
I wrote some semi-complex Redis Lua scripts recently... didn't need a debugger, but it's great to have.
That said, the biggest remaining pain point is that it would be nice if a Redis script could refer to functions in a shared library. Yes, you can always just assign functions to variables and call them that way, but now you have to copy standard functions in every script that needs them. This is a PITA.