I like that plex can be used for other than just cryptocurrency, which was one of my concerns when it first came out! It's very easy to use as well with tutorials being available online in multiple languages (including Spanish). The documentation could include more examples or explanations regarding some functions/tricks you might not know about right away but need later down your project path, such as how they're able to create tokens without needing an ERC20 implementation library etc.. Other then this minor issue i really couldn't see any issues at all from what ive seen so far! Its definitely worth trying if your looking into creating custom coins within blockchain technology projects. We are currently developing our own coin called "SOLO" where we will implement many features including decentralized exchanges & token minting services - among others.