I am a dance teacher and order lots of dance shoes for classes and shows for both myself and my students. I bought a pair of these to try out before ordering for my students. This style jazz boot T7802 fits true to size unlike the cheaper style of this same type of Theatricals jazz boot which runs EXTREMELY small. So as far as sizing goes, this jazz boot is good. However, I do not like the way they are made with the elastic going underneath the heel, and the toe of the shoe narrows at the end where I prefer to have more toe room, so they are not as comfortable as I had hoped. I would recommend, if you like this style of jazz boot, spending a little more for the Dance Class brand which fits better overall even though it only comes in full sizes. I cannot comment about the durability of the shoe however, as I have only worn them twice, but I assume they are as durable as all the other Theatricals shoes which I find to be pretty durable, overall.
We had been a buyer of Jazz Boot T7850. We find that the 7802 is much closer to street shoes sizing. The way it is cut allows it to go on and off the foot very easily. We are assuming that the comfort and durability will be excellent, but this is the first season we are trying it. Appears that Theatrical has another good product here.