I liked the idea of Agents of Shield, and mostly thought the execution was pretty good, too. The problem was that the original concept -- a TV series with stories unfolding in sync with the MCU -- was practically doomed to failure, because it became harder and harder to coordinate the timelines. It started off great, with the Hydra reveal pretty well synched, but it turned out much easier for the movies to get off schedule, and it turned out that while the guys running the TV show tried to communicate and coordinate with the MCU filmmakers, it wasn't reciprocated. There was never even an acknowledgement in the MCU regarding Coulson's updated "status". So Agents of Shield just went off and did their own thing. But I liked most of what they did. The Ghost Rider arc was pretty cool, as was the Framework arc. We even got some reasonably interesting stories with the Kree, and some time-jumping that allowed them to tie in some other MCU characters.