Ordered two of these. Got one so far. The one I got has a heat break that was closer to 25mm instead of 27mm long. It didn't fit either of the Tycoon Max's I tried to use it on. The screws holding the block in were too long and the block ended up loose because of it. I'm used to E3D hotends, so maybe I missed something, but I'm about 99% sure I didn't.
The heatbreak I received is also not the same as in the featured photos. Mine was not a bimetal heatbreak as shown. It's either aluminum or stainless.
The thermistor and extension work fine.