My small experience with it is thumbs up. Did it with 20 or so hives year.
Here's what I learned
The bees will make emergency cells as well as on your notches, I do not think those from emergency cells that were in the main part of the frame were as good as t he notched qs.
The outer and bottom cells did fine. The notched ones ad per Mel's ots did fine.
I will eliminate the cells they start after 3 days
I will only do 2 notches per frame remove emergency cells.
Absolutely must feed bees and follow all basic principles of q rearing.
Where I live I wait till I see 8-10 frames of brood then ots. We have named may 1 st Melvins day lol.
Other tip is to not use a nuc but put old queen above in a deep using a snell rove board and run a 2 q hive for the rest of the early summer flow. This way you can make up population quickly and salvage lack of brood for foragers.
Of course this cancels out the varroa benefit. So your call there.
All late season july 1 new need to be fed.
All hives had to be treated in Aug so that's why I have decided to run the 2 q system this year.
Honey production was lower than the expected 50 lbs but that is our location more than ots.
If you grasp his method, the one thing I would suggest is making enough nucs to requeened all your hives next spring so you get a young queen in the big hives, and use your old queens for breeding. There is a really cool method used by Laidlaw using a division board in a 10 frame box and having 3 and 6 frames with a queen exclude built into lower part of division board.
Laidlaw did this to have a queen in a small area and perfect larvae a f e to make cups with but I think you can see how to do it with ots.
Other factoid cull all q cells that look like bees added wax to the bottom of the cell, they do not want those queens and are waiting for their choice queen to hatch and dispatch the ones they added wax to.
it is easy to consider yourself superior to others, what matters is are you superior to your former self.