I put 5 days in on my K2 Rykers this month. I came from some entry level Forum Scouts.
The first 2 days using them, I got a pressure point in the left boot. It was very close to the the of the boot to the right of my shin. I can only assume that this was a result of the liners slowly breaking in. I went about my first few days riding with the tops/boa cables fairly loose, though.
By the end of the trip I was tightening the boot normally and did not have problems with pressure points.
The lower part of the boot does a much better job of sheltering my feet from being squeezed by my bindings than my last pair. I got mine with a tad more room in the toe area than most fitters recommend because my feet really do need the room to swell once the blood starts flowing.
BOA is nice for tightening/loosening, but you have to be careful about the hooks for the pant gaiters(?) getting stuck on the boa cables.
I chose the Rykers over the Ride Hy-Phy. Both fit my foot very comfortably, so I went with price as the deciding factor.