Humor and Drama were added quite nicely because of how they'd bring you into the anime from the first couple episodes with humor, then strike you with drama. The Drama was just so well done, it was depressing. But that's the thing about it! Clannad can make any person cry easily. Crying to this Anime is something I do not consider embarassing in the least. It is something to show you have a heart because all the characters have a scene that's just sad when you watch it/listen to it. If it gets translated to english, I bet listening to the depressing scenes will make you cry because of the perfectly done OST they used.

Well you have two seasons of Clannad with 22 episodes each, with of course 2 OVAs each. Now each season provides about 10 episodes of backstory for the supporting cast so if you're looking for main plot-related material, you'll have to suck it up and wait. The backstories were definitely worth the watch, but there were a couple that seemed a little drawn out, but easily overlooked because the characters themselves were interesting to watch when interacting with others.

There was plenty of comedic scenes (especially with Sunohara, Kyou, Akio, Tomoyo, and/or Okazaki involved), but as you head into the second season, it gets depressing very quickly, with no hope of any real comedic relief.

Review Presentation:
There isn't much humor in Season II but there is quite alot in Season I. (Mainly involving Sunohara)
And of course,if your favourite girl isn't being picked by Tomoyo in the end,have no fear!There is Episode 24 which is devoted for fans! (Basically,a special episode that features Tomoya being with another girl instead)
However,for Season II there is Episode 23 which shows how Kyou and Tomoya met and 25 which is a brief summary of what happened so far.
Again,for the fullest content and to pick the girl that you want,get the Visual Novel. (It ain't coming cheap however)

Side Note: Episode 24s are based off the Visual Novel Arcs.
Side Note: The Anime is better in a sense since all the girls gather together unlike the Visual Novel.

So far I would say it's entertaining, and it almost pains me to put an 8- for I really quite enjoyed the show from top to bottom, but to be fair and critical, it doesn't go really higher than that. I constantly get the impression that KEY's 'angsty feel' is not present within Clannad. Of course, Kotomi and Fuuko's arc tugged on my heartstrings and made me shed a few tears here and there- who wouldn't?-as well as the ending, but other than that and a few humorous and silly scenes (Tomoya's lies about Sunohara loving him had me cracking up like an idiot), I guess Clannad didn't really mean much to me.

An anime that has excellent presentation is a memorable combination of solid art and visual detail, a complex storyline that requires careful direction, and a steadfast pair of voice acting and musical composition. Even if you have not played the game itself, the TV adaptation of Clannad would be a nice substitute, because in my book, it has all the qualities of excellent presentation.
Kyoto Animation did, as always, a superb job directing each path of the game into the show, and all the members, including Kazumi Ikeda and Fumihiko Shimo, who directed the story plot and the animation, respectively, have made it their intention to raise the bar once again after the success of their prior works.