What started great in S1 leaves me irritaed in S2. Did they change the writers? Did they change the directors? What happened?

Example: Eleven has never been outside of the town ever. She can barely talk properly. But all it needs for her is to take a look at the photo and *boom* she's sitting in a night-bus to Illionis to find her "sister". How did she recognize Illinois if she's never been there at all? Really? At least try ...

Now we get to watch almost completely storyline-disconnected 2 episodes of Eleven and her sister, which after 2 episodes dissapear and did not contribute anything at all to the story.

The whole S2 feels like they decided to develop the characters a bit more after the finished filming. They cut two or three episodes out and simply put some new in.

Almost nothing happens in E1-E5. Should have stayed that way and keep more mystery. But no, after E6 they decide to go full Michael Bay ...

After E6 I just wanted to end the torture, finish the series and forget about it. It's a shame what happend to a good series.