First and foremost this is my second pair of Fizik R5B Black shoe and to be clear I still have first pair Fizik R5B White shoe. The Boa system is nice, easy on, easy off, great adjustment if any adjustment is needed. Summertime cool, comfortable, highly recommend the shoe.
This is my third pair of road shoes using the Boa system and these are the easiest and quickest to put on and adjust for a comfortable fit. The only thing that I would change about this shoe is the velcro strap at the toe. It could do without that velcro strap.
After a lot of research and reading countless reviews I am very happy with my purchase of the Fizik R5B road cycling shoes. They are extremely comfortable and easy to put on and adjust. The best road cycling shoes that I have owned.
I have been a Sidi customer for over 30 years. I thought I would never buy anything but Sidi's as I have always had great fit, durability and comfort from them. Lately, however, I think their prices have gone up too high, especially the models with the wire closure system. Durability is TBD, but I consider this shoe, with an excellent wire closure system (that really works), to be a bargain. Nice wok Fizik!