I have 2 Vinotemp 28s. Plugged the drain holes (no condensation problems ever), made some Spanish Cedar shelves, and I use a Cigar Oasis in both of them. Temp and RH are almost always around 68 degrees and 62-65% RH. I'm not a fan of beads.
It's a fun project, but it does take quite a bit of tweaking and playing around with stuff. But...I guess that's part of the fun. It's like a science fair project for an adult.
