The usability of the applications was often much reduced and common features that the user had grown accustomed to, such as drag-and-drop, undo-redo, context sensitive help, and so on, were no longer available. Furthermore, the responsiveness of the application was diminished, especially for business applications, such as those in customer call centers, which demanded heavy data entry and navigation across multiple screens...

• Security and the inability to host the system yourself
• Inability to take advantage of all the power of your desktop PC
  
• Managing complex tasks with a web page, even with advanced browser UI can be a frustrating experience
• Managing large files round-tripping to a remote server can be soul destroyingly frustrating
  
• Being off the air if your ASP's web server is down

• Requiring a complex install to access your project
• The inability to access your project from anywhere