The ease of use for customers to manage their own fleets with no additional software needed! They have been very responsive in assisting us during implementation as well as after launch. We are able to see all vehicle information including mileage/fuel usage which we could not do prior without purchasing another product from FleetCarma or 3rd party vendor (eMeter). As it's now available through our Salesforce platform, there isn't much more that I dislike about this solution so far - however they've only just launched version 2 last month at time of writing this comment. Reporting has gotten easier since implementing Version 1 but still some work required compared to other similar solutions out there currently within market.