First, give Ben and Elegant Bar 6 Stars for their service and coordination of the shipping to my rural area to meet a specific timeframe. It's a heavy beast, weighing around 280 pounds unpacked. The cooling is by freon compressor (much better than that thermoelectric garbage). Separate heating system too. It will will likely hold 2000 cigars if you add cedar deep trays to the horizontal shelves. But that's not how we usually use humidors.
Adam has a point. First, the shelves are thinner than what we may be used to. However, they sit on metal roller guides. So the question is, are the shelves "sturdy" enough? Sure. Would I like them a touch thicker? Sure. The weakest point of the entire system is the humidification system, which frankly as an engineer, seems an afterthought. And yes, you'll frustrate yourself with the calibration process because there's a pool of water in your cabinet. And then, because there's a pool, humidity will range wider than you'd want, and mold will be an ever present fear.
So my humidification solution is to use 4 pounds of 65% Heartfelt Beads which are top notch. There's a lot of poor performing beads out there, so make sure you get the good stuff. I let the cabinet stabilize for 2 days, and then fussed with the calibration using a calibrated hygrometer to compare to. You need to put the hygrometer near the sensor on the left side as you'll have variation in the cabinet. I set the cabinet humidification to 66% and the fan will come on rarely just to move the air around for a minute to normalize humidification. The door seal is great.
Memo to Prestige Imports: Change the design of the humidification system to be Beads Only. A larger tub placed on the bottom forward. A fan (resting in a slot vs. screwed in) programmed to run 1 minute every 1/2 hour. The bottom shelf relocated just above the compressor shelf. That would make humidification recharge much more user friendly.