I've got both designs and find the Abelo stuff to be genuinely better. So I guess how much do you value your time and it's a case of you get what you pay for.
Sweinty: The amount of times I've cracked between the brood boxes or supers for inspections and the edge of the box where the lugs rest against has broken is quite annoying. The floor grids also have to be assembled and i'm not sure how good they are for allowing Varroa to drop through; I think the mesh holes could be a bit larger. you also need to put it all together and then paint it, which when you have a large amount to do is time I would rather spend doing something else, even in the winter.
The roofs are annoying as when you are using them to place over stored equipment, the over hang on the boxes wastes a lot of space. This same issue is also the case when you want to palletise your hives in Apiaries... granted not a huge issue but if they were more flush, it would be better.