I can't comment on the models you are considering, but I have two. One is a Summit in my breakfast bar that has a very soft hum when it kicks on. We don't sit near it, so it's never been an issue. The other is a SubZero in DH's bar in the family room that is totally silent.

Having suffered through a series of U-Line under-counter refrigerators a few years back, I can tell you I wouldn't touch any of their products again with a barge pole. Shoddy construction and quality control, customer service is non-existent and they won't stand behind their products. Even my local appliance repairman, who was their authorized service technician in the area, gave up on them. Always long delays in getting parts, and apparently very slow to pay for warranty work. He no longer works on U-Line. While it's possible they've gotten their act together in the intervening years, the damage has already been done! I'd never, ever take a chance on them again, and I always steer people away from them.

I've got the stacked Marvel wine storage/beverage refrigerator. It was expensive. It cost around 4K when I bought it five years ago. They are separate units with some kind of joining mechanism that allows them to be stacked on top of one another. The wine storage unit is fine. I have no complaints. The racks are not tilted, they are flat shelves with indentations for bottles. The beverage storage has drawers that are not adjustable. Everything has to be stored on the side. Nothing can go upright because the racks are too close together. I purchased it from AJ Madison. I never saw the product in person, only on the web. I learned a valuable lesson. Always see it in person. I wouldn't have purchased it if I had known how the beverage drawers were set up. But, you want to know if it is dependable. Yes, both units are dependable. It's plenty sturdy, too.

Thanks for the info Sid! I have zones set up already as part of some electrical upgrades that were performed and this allows me to run my gasoline generator (Honda EU3000, great little generator by the way) and power the house when the electric company misbehaves. I considered a Natural gas generator but for the cost, I would prefer to start going solar and will have my little generator in cause of a super emergency. My roof does not have shading but I do love the Sunflower and tracking solar although the cost versus value is debatable for my situation. Really I am just doing Grid tied because I can't afford to go off grid at once. Most of the grid tied credits are almost a wash in my area. Your statement is exactly how grid tied works in my area. I am actually on the waiting list for a Powerwall. It is both a backup battery and can function as a huge UPS for power fluctuations. I have noticed more and more power fluctuations in the last three months. All my major appliances and the electronics are attached to Modified or Pure Sine Wave UPS. They beep randomly when they kick in due to unstable power. For battery backup, I was actually looking at the salt water based batteries from someone like Aquion. Safety and lack of management like AGMs was my main motivation. The batteries will be in a storage space in the home. They are still quite expensive so I hope over time, they come down in price. The charge controller and inverter will be my biggest expense. Still have to make a decision whether I want to roof mount the solar or go with a tracking solar pole mount. Looking at the logic of this approach in my region. Also need to read the rules for my county about tracking solar. I know there was some hoopla a while ago about wind turbines. Thanks for all your feedback so far.