It's just as good if not better than the first season. I won't spoil anything until more people get a chance to finish the season, but I do have some quick thoughts to share.
Props to all the actors, every character was a thrill to watch and they gave amazing performances. Special shoutout to Billy, Max's stepbrother - he was the red Power Ranger in the Power Ranger film earlier this year and he stole every scene he was in. What an asshole! The embodiment of every 80s meathead stereotype - listens to metal, what-the-fuck hairdo, smokes while bench pressing, 40 second kegstands, I loved to hate to love him. Also a shoutout to Winona Ryder and Sean Astin. I thought they did an amazing job.
I was really happy to see what happened with Steve, Jonathon, and Nancy throughout the season. And all of the kids got plenty of screen time! Max was a cool character, and it was nice to see the kids dealing with every day kid stuff in school. The episode where they got in costume for school had me laughing a lot. Dustin was hilarious this season with that 'check out these pearls' line.
I'm really happy to hear it's renewed for two more seasons. One of the best shows out there!