The ease at which it is integrated with other products like Jaxx etc., It's easy enough so even basic users can use without any training or assistance from an expert user! I would say nothing really because everything works perfectly well as intended in my experience using this product thus far but if there was something i disliked about its functionality then perhaps some sorta minor issue here nthere could be improved upon maybe? If anyone has used unBound Core before please feel free t comment below regarding what they thought were their pros/cons compared too another crypto wallet service provider such us Binance (binance), Coinbase Pro / GDAX among others!! You have made our lives easier when investing into cryptocurrency especially given we are living outside USA where banks do not offer very many options aside fintechs who charge exorbitant fees per transaction hence why most people prefer these online platforms.