Pros:
For me, the
biggest pro is the ability to put windows in each box, looking along the combs, which work well because there are no wide frame bars blocking the view. You can check all kinds of things without opening the hive. For example, you don't need a thermal camera boy's toy to see where the cluster is located. You can see whether there are stores or whether feeding is needed, the presence or absence of brood etc, and when boxes are ready for harvest.
Simple carpentry skills needed to make a hive and top bars.
No frames to fiddle with each year.
No foundation to fiddle with or worry about.
Good insulation and traditionally no feed hole.- Bees manage ventilation.
Smaller boxes are lighter. Usually 300x300x310mm inside, but up to you.
Cons:
Obviously, comb is destroyed when harvesting honey.
If moving multiple boxes, management is much easier with 2 persons or a lift -see my design using car jacks & costing about £20 on biobees site.
https://warre.------------/lift.htm -Scroll down.
Burr comb adhesions need cutting with a right-angled knife tool (DIY), and manipulation needs more attention because unframed combs are fragile.
There is likely to be criticism or derision from "conventional" Beeks who know better.
Also consider a long horizontal type top bar hives - they don't have to have sloping sides. In my experience a Tanzanian works as well as a Kenyan, and are simple to build. Add windows for the same advantages as a windowed Warre.
And there are lots more points which I would remember if I had not imbibed first...
