With the current drawers, I could probably fit 150 or so in them, plus maybe 3 or 4 boxes under the bottom drawer. Most of my sticks are around the robusto size roughly. They do have this wineador on amazon and at some other places with the shelves/drawers already included, but they were out of stock when I was looking...they claimed to hold up to 250 sticks...probably a reasonable estimation for smaller RG sticks.
Currently I am using 6 65% boveda packs and I have 4 more I can use if/when I need to recharge the ones in use. If I didn't already have some bovedas on hand, I would probably have gone with Heartfelt beads, and I may go that route at some point down the road, but for now the bovedas are fine.
I also don't smoke as often as many here, so this size is right for my needs.