I have had the Rocket7's for over a year now. I can't really comment on the durability as much as Merlin could, but they are holding up rather well so far, but I am very careful with my shoes.

The fit is great (which for me is a godsend), the shoes are stupid light and the ventilation is superb.

I saw that Bont's were mentioned, I would hold off on them for a little while as it seems they are still perfecting the process. I have heard that the ratcheting strap has had issues of stretching out, and that the ventilation is nearly nonexistant. Too bad though because those are some slick shoes.

P.S. and regarding Sidis - absolutely a horrible fit for me. My girlfriend has the Genius 5 and loves them, but my feet and those shoes are totally incompatible.