Bought my Guhong v1 from speedcubeshop.com Feb 2012. It was my first speedcube (I switched directly from Rubik's storebought). All I've done to it is used Lubix on it, did the 48-point edge mod, and tensioned it. If I were going to competition right now, it would be my main. I like the smoothness and the turning feel though perhaps it's a little blockier than ideal. I have it set at slightly tight tensions. It can cut almost 45 degrees but not quite. It hardly pops on me... at least not anymore. Speaking of my Guhong, it's probably time for me to relube it though it actually doesn't feel that bad... I just realized the last time I lubed it was October...