OK so now I have both the Grobo and Grobo 2 going. The way I put together the Grobo 2, it is very solid, next to no light leaks, should be a lot more smell proof and it is waaaaaaaaaaayyyyy quieter.
Keep in mind that I put mine together a little different than most would, but it is sooooooooo nice, I am seriously thinking of selling my original and getting another 2. The 2 fixes a lot of the issues I had, light leaks, noise, smells and all that.
My grow in the original should be ending in a few weeks, need to think what to do or not do.