The best thing about xorp is its simplicity, easy-to use interface which makes it very user friendly for end users who are not technical experts as well! It's also an excellent tool when used with other products from 3rd party vendors like SAP etc., I would highly recommend this product if looking into implementing any form or integration in ERP system such as SAPS OTCs using SOAP API calls or integrating between different systems/tools.
Nothing so far but we have been able solve many challenges faced by our client regarding their existing legacy software solutions (ERPs).