i like that it can handle large file sizes, also multiple people in our organization have access to this program which makes things simpler! The software requires lots of training but once you do get used with all aspects then its very user friendly system so everyone from your users down knows how everything works etc - no issues here! As stated before though the amount time taken by us during setup/training could be improved upon as there are bits where we feel some guidance would help along way (eclipse required) however nothing earth shattering or anything other than being able figure out what they mean lol!! Good product great tool good price easy set up even if has eclipse requirement not too much difficult at least easier version available without requiring expensive fees!! It supports different kind off formats such AIMLs AS2 files and many others that might need supporting. I like the fact that they have a large team of data specialists who can work with all types of data and can get it into Passport. Also, the team is quick to respond and the customer care is great. We have used PassportXchange for years now and have never had a problem. They are very fast to respond to our questions and make sure that our data is in the system correctly.