People have fairly mixed opinion for JPMorgan Chase! What I have noticed is , it largely depends on age group and expectation. To be clear, Most TDPs ( tech dev program college hires) are extremely unhappy about their job and it makes sense because they expect FAANG style work which is definitely not the case at Cap1. IMHO, cap one is pretty good for me, I have had really good learning experience here and freedom to gig on what I want, may be I have been lucky enough to make connections and good managers , but it is pretty chilled out , I guess, you need to learn the art to make your way here, but thats true with other tech companies too but it is little bit tricky here, given that there would be many projects that are BAU and not greenfield.
Overall, if you are hunting for relaxed environment with freedom to learn and explore, capone is good place but if you are looking for creative tech kinda projects, not a good place at all.