Solid foundation, minor tweaks needed
This script provides a good starting point for building an e-currency exchange. The core functionality works well and the code is relatively clean and easy to understand. I was able to get a basic exchange up and running without too much trouble. However, there are a few areas that could use improvement. The user interface is a bit clunky and could benefit from a redesign for better usability. Also, some of the error handling could be more robust. Overall, it's a decent product that offers a solid foundation, but it needs some polishing before it's ready for prime time. I'd recommend it to someone comfortable with PHP and willing to put in some extra work to refine it.