I bought these after using Vapor xx's for the last 7 years or so. I was going to stick with the Vapor line but decided on the Nexus line because I heard they provide better forward flex. Was a EE in the Vapors but a D in these as they run wide.
I thought about the 600s but thought they would be too soft with regular use, so I upgraded to the 800s. Good choice. Had them baked and they were about as comfortable out of the box as my old xx's. I pretty much broke them in after playing rat hockey for 2 hours. Overall, a great choice. I'm happy with the fit, ankle lock, forward flex and energy transfer. They felt great the second time I played and suspect that they will continue to get better. Very expensive, I have no way to compare to the APX or X7s. However, I'm happy with my choice.