Once down it. The runners were excellent ground, the grip on the ice well and the propulsion properly. The Cuff (support from the ankle upwards) is sufficiently stable and sufficiently firm foothold. The BOA technology for easy lacing shoes is outstanding - even with the skaters. Quick clean, quick out, perfectly laced and tightened between easily - simply turn a bit. K2 is it over the entire shelf-life guarantee, so over the warranty period also if taken literally. That remains to be seen.
For the demanding occasional drivers of this shoe is very good.
Unfortunately, I seem to have a physical abnormality, because i cant as with almost any inline skating and extreme outward. For K2, however, can not. My leg axis is wrong stop. In some skaters can move the rail laterally so that it works then. Skates I have not heard or seen the, not even with these in the leisure sector. Now my son is pleased about it, which is outgrown its old and in any case at the time is the same size as me. It is stable in them and confirmed my other judgment. Best shoes he ever had.