I think Fruit of Grisaia could easily be compared to anime such as Angel Beats and The Irregular of Magic Highschool. That is to say, it's like a combination of the two. Again, you need to watch this anime for yourself, more than just the first few episodes.
Story: The story is great, it's nothing too original but that's fine, it's the delivery that matters more than originality, I say. An awesome main character who's been through some terrible things in his life, helping his fellow class mates through their own issues that the past has brought on for them. It's a great premise and it's played out really well.
Art: The art is great, much better than I was expecting it to be. Think Monogatari art meets Angel beats art. The emotions the characters display are very believable because of the art work in their expressions, and some of the comedic expressions are hilarious and loveable as well.
Sound: The music is great. Sad music is played at the right time to make an already tearjerking scene much more tearjerking. The character voices are awesome as well, especially Michiru. She's so funny, reminds me a lot of Yui from Angel Beats!
Characters: (*Light Spoiler*) All the main female characters have some sad, dark issues that make them all loveable and make you really want things to work out for them. Some of the episodes concerning these characters will get really dark, especially nearing the end of this season of FoG. And it's the raw emotional detail that's put into these characters that makes this anime so good, and definitely worth watching.
Enjoyment and Overall: I don't think this series was really lacking in anything. It had a good balance of comedy, sadness, joy, action, suspense - it was perfectly well rounded. It did involve some ecchi and a lot of the ecchi scenes seemed unnecessary but really: When is ecchi truly necessary? I enjoyed the ecchi, personally. But don't worry, if ecchi is something that's offputting to you, perish it from your mind. It doesn't try to shove the ecchi scenes down your throat, and as the show progresses, it becomes less and less frequent.
So yeah, in closing, this is definitely worth watching if you enjoyed titles like Angel Beats or Irregular of Magic Highschool. Gave it a ten out of ten myself.
