The shoe felt perfect however the lace holes barely go up high enough so heel slippage was an issue. I could tell though if there were properly placed laced holes I could've easily done a heel lock and it would be all good. Unfortunately that was not the case.
I was going to search these shoes out in Germany when I am there later this year and was pleased to find them on an Australian website. Straight out of the box these shoes are very comfortable, they are soft inside so no problems to wear without socks. The Vibram sole does give them a sturdier feel than say Vivobarefoot Stealth, almost like a trail shoe feel, but I think they will last much longer because of this. They still have very good ground feel and flexibility. Compared to my previous shoes they don't seem to have as much airflow through them but this is just an observation, not a negative. I plan to train in them in winter and race in them in Iceland later in the year so this will mean I can continue to go sock-less without getting cold feet. Having said they are definitely not hot on my feet just not as "airy". I am very happy with them overall and enjoying my runs in them.