The functionality of this tool is so powerful that I could not stop myself from using it even if there were no freebies available for me! It helped us work more effectively by saving time in almost every area like planning trips or managing bookings which resulted into an increase revenue as well (we are travel management specialists).
Nothing much but its pricing structure needs some adjustment/revamp here &there; otherwise we have nothing negative about their service thus far!! We used TO manage our trip operations at multiple levels - i) internal organization ii), cost allocation iii)- Booking system etc.,.