Ranked in these QuestionsQuestion Ranking
Pros
Pro Conceptually simple, yet complete
Most frameworks seem to tend towards conceptually simple, but also stripped down (such as Python's Flask), or go the other way and be very fully featured, yet complex. AIDA/web, however, manages to give a programmer a lot of expressive power, while remaining conceptually simple -- an afternoon will get you building websites, and you'll feel comfortable with AIDA/web in just a week or so.
Cons
Con Obscure
Does not seem to be widely used, the dates on the website are missing the year in the information, very strange.
Con Relatively inactive
At the time of this writing, AIDA/web is 26 years old (first created in 1996). While maintaining pace with modern technologies (REST, Javascript, etc.), the community is small. You might find it difficult to find timely help, find resources and tutorials, etc.