The ability to create all your POs from one place with customisable fields is great - you can't go wrong with this software! There are some minor issues when using it in China in terms of time zone differences but I believe that will be fixed soon enough as they have recently launched new updates which include more languages (Chinese included!).
Definitely give them another chance if you haven't already done so! It's been easy for us to use since we're not technically minded individuals and have very little experience working within an ERP system. We've had no problems at all with our PO process or any other areas of the masterplan platform.