...what are the advantages of a flow hive versus a conventional hive? What are the disadvantages?
Phillip
I honestly don't think there are any disadvantages per se... in the ideal situation where bees take to it and they work it just like any other frame, the one major advantage is that you can extract the honey straight from the frame without the need for traditional extraction procedures.
A lot of people are resistant to the Flow Hive system because they're under the impression that the creators either directly or indirectly encouraged laziness, because the super is marketed as such that you don't have to remove the frames in order to extract the honey and in turn leave the bees fairly undisturbed...
The laziness factor, is far from the case... they do in fact say within their subsequent videos, after such thoughts started to surface, that you have to take care of your bees like any other hive; checking for pests, preventing swarming... ect...
All in all, the flow Hive is just an easier way to extract honey rather than spending all that effort futzing with wax frames, brushing the bees off, cutting the wax caps off, putting it into a centrifuge, and having to put it all back into the hive later on.