Hi Wilgra1
I was once told never recommend which bee hive is best or direct anyone reverse parking a car towing a caravan.
However...we had a Flow Hive at our divisional apiary. It seemed to have issues with repeated swarming by its residents. I suspect down to congestion issues with a single "super" mechanism. It also has internal workings which require bespoke tools and management with which most beekeepers are unfamiliar. For me, it seems a complicated and expensive solution for a relatively simple single beekeeping task - that of taking off honey - which using conventional methods and only a couple of hives, would be a simple job of an afternoon once or twice a year and no big deal.
The rest of the beekeeping tasks, weekly inspections to prevent swarming, swarm control, checking for food, laying space for the queen, being queen-right, disease, treating for varroa, feeding for winter etc - all that still needs to happen. So I wouldn't personally consider it delivers low intervention beekeeping. For me, its the equivalent of electronic handbrake in cars - an expensive trouble prone engineering solution to a problem I never actually had (of just pulling up the brake lever when i stopped!).
I would suggest that low intervention beekeeping can be done with conventional kit just as easily but we should be realistic as to how low your intervention can be without causing problems for your bees and neighbours. Unfortunately, not intending to take honey does not mean you can just leave them to it any more than not intending to eat lamb means you can put sheep in a field. close the gate and walk away.
Its quite possible to keep bees conventionally without taking off any honey whatsoever- lots of beekeepers do it year after year