been rockin the same nike kaiju boots for 100+ days. They're surprisingly not as beat up as you would think. Just one summer around here will end the life of just about any boot. They are nearing their end though.
My complaints- The material they use for the lower lace loops is not strong enough. The laces eventually wear through the ankle loops after a season of lacing up. The external backstay will eventually break. There seems to be a flex zone in it that just eventually wears down and breaks. Finally, the lace lock eats through laces faster than a normal boot. You'll need to replace your laces about 3 times a season depending on how much you ride.
After all this, these boots still feel like they did when they were new. I'm not 100% sure i'll go with nike again but there is a fairly good chance. It would definitely be the Kaiju if i do go with nike, the zf1s look and feel like shit IMO