The world’s first commercial Haskell IDE and deployment platform.
Ranked in these QuestionsQuestion Ranking
Pro Focuses on Haskell
FP Complete focuses on creating tools for Haskell development.
Pro Cabal Integration
Haskell packages can be easily managed.
Con Confusing website
Con Only for Haskell
FP complete has very limited language support as it's main purpose is to be an IDE for Haskell only.