Overall: This was my first ever manga that wasn't shoujo or had any sort of romance in it, and surprisingly I enjoyed it very much. About the manga (general events, and characters): The character you see with this pinkish-red hair and odd things on his head is the main character, "Saiki Kusuo". If you aren't into animes/mangas that don't have a big goal the characters work towards (like saving the world, killing a villain, or just graduating from school), this is NOT your thing. If anything, it's very random, and sometimes even breaking the 4th wall, but very enjoyable nonetheless simply because it was vERY out ofthe blue. About 10 or so chapters in, you will get a hang of how things go in this manga, but you shouldn't think that it's just going to be the same thing again and again--maybe twice at max to bring closure to a previous problem/situation, but that's about it.

The characters also grow and develop into a better version of themselves. So if you are kind of annoyed by a certain character, they eventually grow out of it or just lessen their intensity as they go.

Conclusion:
Normally, I usually don't like these types of animes/mangas with an exception for K-On!. So I was surprised that I binge read this. At the end of it, it made me regret that I didn't do stupid stuff with my friends when I had the chance to.