I had a nanobox duo over like 2 years ago, used it for like a year. Now that light lies in my closest, and I won't recommend it anymore.
It was a good light, but it's not an exceptional light in terms of performance or build quality. And it's not the cheaper light either. AI Prime nowadays only sell for $199 while nanobox tide is going for $299. Nanobox Duo Plus ($425) has basically the same coverage as Kessil A360W ($399). On top of that it still suffer from lower customer service quality. I had my duo burned and need repair. I had to pay and mail it to him, wait for over a week to have it mailed back. I also had a Kessil A160WE stopped working for me. I got a replacement shipped for me for free first, then mail the old one back with the shipping label they provide. Also that progress spreadsheet is ridiculous. It's basically exposing your personal information out there.
Basically, you're getting not better performance with more bucks, and lesser customer support. I really don't see a reason to pick it over AI or Kessil or Radion.