What are advantages and criticism in Agile ?

Advantages

• Customer satisfaction by rapid, continuous delivery of useful software
• Working software is delivered frequently (weeks rather than months)
• Working software is the principal measure of progress
• Even late changes in requirements are welcomed
• Close, daily cooperation between business people and developers.
  Face-to-face conversation is the best form of communication (Co-location)
• Projects are built around motivated individuals, who should be trusted
• Continuous attention to technical excellence and good design
• Simplicity
• Self organizing teams
• Regular adaptation to changing circumstances

Criticism

• Lack of structure and necessary documentation (Tailored Processes)
• Requires too much cultural change to adopt
• Very difficult to develop realistic estimates of work effort needed to provide a quote, because at the beginning of the project.
  Sometimes, no one knows the entire scope / requirements.
• Increases the risk of scope creep due to the lack of detailed requirements documentation