I've been also very happy with performance of my ION Investment. But that is data for 2017. In 2018 ION has been a very poor performer with ION Price hovering about two dollar mark and falling prices as the Bitcoin price tumbles. now may be the time to sell. The investment is being plagued by being forced to perform many Masternode & Staking Wallets updates and lack of information flow about the progress of the Ionomy Vision. To top it off, Ionomy Studios has only released games with abnormal amount of defects!