I first entered Naxx two days ago.
We have cleared the Arachnid Quarter and Noth the Plaguebringer, and have started trying to learn Heigan the Unclean, which is proving to be a somewhat difficult encounter.
I haven't had any drops yet, although I'm not overly bothered by that, as my primary focus is going to be on T7 badges, when we get up to those. I've primarily seen either Druid or Paladin gear drop so far.
Per my earlier post about reaching 80, where I talked about doing what was necessary in raid terms, I also used 50/21/0 for the second time here as well. At the end of the night, here was the result:-