What have you used Haskell for? My experiences learning and using Haskell professionally have been nothing but pleasant, especially for DSLs. It’s been difficult at times to wrap my head around a new concept, sure, but sometimes you just have to work through it. That’s how programming is. I will grant you, though, that GHC’s strictness analysis is sometimes a bit too conservative, so I have had problems with memory usage in the past.