Honestly, this season is feeling like things are just getting started. If there is no other season (which I'm assuming there will be), then I think this wouldn't be much of a watch. But assuming it is, I think this is worth watching when season 2 is out or around the corner.
In a nutshell, the main charater's dad gets mairred to the mom of some girl who he slept with less than 24 hours of finding out the 2 are together and she is the mom of a teacher he wants to be with. As you might guess, anime logic happens and he does end up getting in a relationship with the teacher and the girl. From there out, it becomes a fantastic slow motion trainwreck until the last episode.
There is a number of things I and many others find at fault with this. Like the picture that was taken during the last ep, it physically would've been impossible to get it. Like the picture was taken by someone for a yearbook, they didn't know about taking the picture until going through all of them, and yet it's zoomed right into spoiler. And with the hight and whatever, the person had to be in a crane or on top of a tree to get the picture. The subject was multiple levels up.
Another problem many found is the show skips over a lot of important detail that is in the manga.
One of my personal problems is the show has too much backstory on people who doesn't matter. Like there is an entire epsoide or 2 on back story on people who doesn't matter in this season (obviously, this might pay off later).
Any case, I would say watch the first 2 ep. If you don't care for it by then. Then I highly doubt that will change.