I can only speak to the Danby that we had purchased at Sams Club. I had one installed in my BBQ island almost 5 years ago, and it is still going strong. Considering the low cost and the fact that it has to deal with 100+ degree summers, I have been very pleased with that unit.
I expected to be replacing the cooling unit by now, but still going strong.
My only regret is not having a fan to blow cool air into the tower. Working on a solution, but first pours tend to be a little foamy.