Scalability-wise, I rate the solution a six out of ten. With ADP GlobalView Payroll, if I have to scale up the operations, one of the practical challenges I would like to highlight here is that in the post-implementation phase, if there are any new system enhancements or customization requests, it takes a lot of time to work with ADP to implement such changes. In the present time, every business has to operate in an agile manner, but I think that when it comes to the area revolving around change and control, there is a cost involved in ADP, and it comes as part of ADP's global contract. Most of the time, users may find that the prices quoted are not reasonable to justify the efforts involved from ADP's end. Most of the companies that fall under the category of Fortune 100 use ADP GlobalView Payroll, especially in the APAC region and Europe. The good thing with ADP GlobalView Payroll is that its system can be integrated with any HR system, like Workday or SAP SuccessFactors, since the integration is very seamless because many companies use global HR systems.