I am the CTO of a company that provides the best error reporting and post-mortem debugging solution in the market with several industry leaders relying on us to improve software quality. Several vendors were considered, but AppTailors came highly recommended from one of our leading engineers. After a series of interviews and close monitoring of early stages of the project, we decided to pursue a longer-term engagement for AppTailor's services. I managed the project and worked with Marcin to ensure milestones were being delivered. The completed solution continues to be leveraged by major corporations. The project management was effective as deliverables were documented and milestones delineated. They always deliver on time. I am completely satisfied with their services.