Found out later that you need to stagger in drawn comb to make it work. Guess what most newbies don't have?
don't need it. the guide helps, but i have dumped swarms into boxes with completely empty frames when i run out of equipment. couple of keys to it, though.
you have to have your bee space right. one of the most common mistakes made is to not have the frames tight together toward the middle of the box. you also have to keep an eye on them so that if they start anything funky, you can fix it quickly.
to be honest, i have had as many problems with foundation as without . double comb, odd break repairs, connected comb....
some hive are just messy and you either stay on top of them or live with it.