Getting that out of the way, Haikyuu!! seamlessly puts 2 and 2 together and creates a fun and memorable watching experience. This is especially due to the bright cast of characters.
You have a quite stereotypical line-up of characters in the Karasuno team but what makes all of this interesting is the interaction in a team environment. All players have the same goal in mind and work despite their differences towards being the best. This strikes up some nice comedy moments where an energetic and lively character such as our Protagonist Hinata tries to work together with his fellow teammate Kageyama which is more of a calm and collected type of person. What ultimately breaks the Stereotype of most of the characters featured in this Show is their conflicts. Unlike most Anime Kageyama for example isn't a god on the playfield that has nothing to learn just because he's a very gifted player. He grows as a person and as a Team member from having to look at his own mistakes rather than criticizing his teammates and shifting the blame towards them. He's not the only Character that has this kind of growth tho, Haikyuu!! explores many themes related to the anxiety of failure and the mental pressure from playing a sport in a competitive setting.
Despite all of this some moments really overstay their welcome while others are getting cleverly used.
SPOILER WARNING FOR THIS SECTION:
I think they really overemphasized the entire "lonely king" plotline. Seeing that shot of Kageyama tossing the ball into nothing for the 15th time during the first Season really meant less and less to me, the more often they showed it. On the other hand, a great example of a conflict being resolved is Asahi's plotline. That moment when he crushed through the "Iron Wall" with a powerful spike was presented beautifully and marked a big stone in Asah's development as a player and as a character.
SPOILER OVER
Now a little word or two on the comedy. I genuinely enjoyed the comedy overall. It had a bit of everything, ridiculous and very "anime-like" and some fun banter and sarcasm.
Obviously, I also have to talk about the presentation of this show and boy oh boy it's fantastic. the animation is consistently very fluid and great on the eye and the real spicy moments look amazing. For example, I love the fact that when a Spiker hits a ball really hard, you can see the air pressure steaming of the ball as well as clearly hear how hard the ball just got smashed on the other side of the field. A real spicy moment is when they go over the top with the looks, representing how it feels to be in that moment.. (growing wings for jumping or just very eccentric animation)
One point which is also the reason why I'm scoring this lower than Hajime no Ippo for example is just a personal love for the underdog story. Karasuno are represented as "underdogs" but soon enough or rather immediately they prove that they're a team that could potentially make it to the national finals, which at that point they don't really count as underdogs anymore. //also like mentioned earlier I disliked the fact that some character arc's really overstayed their welcome.
What Haikyuu!! also lacks in my opinion is a great soundtrack. Don't get me wrong the Openings for example are nice and here and there were songs that really captured the vibe of the scene at that moment but skimming through the OST as of writing this review, I only feel very lukewarm about it.
TL;DR Haikyuu!! is exciting and fun to watch it has a good cast of characters looks amazing and handles themes about competitive sports in an interesting way. It's definitely worth watching.
