Absolutely, depending on who you are. I enjoyed the message of the show, and it has tremendous subtext; it will probably go down as my #1 show by the end of my life, but that's just who I am. The show was pretty much made for me. Can't say whether you'll like it too but a lot of /a/ seems to hate the full show or the second cours. I've noticed a few animation flaws I'd like to see corrected but you probably won't pick up on them your first run through.
If you do watch it just remember it is predominantly a drama/contemporary piece about the state of technology and humanity's relationship with monogamy
. Don't go into it expecting a straight mecha.