I loved the first season.
It was the best thing I'd seen from DC, and managed to not cater to nostalgia for either PAD's Young Justice, nor the Wolfman/Perez Teen Titans, despite cherry-picking some of the fun elements from both, and re-imagining them with some tweaks (martian blood being the source of Beast Boy's green skin and shapeshifting? Genius!).
Later seasons have kind of time-jumped forward, and I feel like there's a lot of 'missed stories' potential for spin-offs or attending comics to be able to fill in at various points, if anyone wants to do so, since there are months, possibly even years, 'between' seasons, into which all sorts of 'season x.5' stuff could be set, dealing with stuff that happened off-screen, like Kaldur taking over as Aquaman.
I don't love the later seasons as much, but I still like it enough to wait to watch it every week until after the latest episode of Titans has dropped, so that I can watch a new episode of Young Justice: Phantoms to sort of 'wash the taste out of my mouth.'
