Brilliant acting from everyone involved -

50s/60 sitcom atmosphere -

Mystery undertones -

Great chemistry between the two leads -
Personally, I thought the first 2 episodes were great. Even the first one, which some seem to find boring and/or inconsequential, when watched carefully, I think there are plenty of subtle hints to be found which point to what could be really happening.
It certainly got me hooked, and I can't wait to see how the rest of the series will play out (not to mention that it's the first MCU property we've gotten in 18 months which only adds up to the excitement

).