YES IT IS!
It's only been 5 eps though (watching 6th now), so I can't say for sure how it compares with some of the more epic drama animes like Clannad/Kanon/Air. Most of the impact in these genres comes in the ending and resolution.
But it's got a very interesting (and unique?) setting, nicely done characters that you really get attached to... so much potential!
Oh yeah, if you guys have watched Kyou no Go no Ni (good comedy anime, but also heartwarming), this remind me a lot of that, and what would happen if Chika were to die...
Edit: Just finished ep 6... this thing just keeps getting better. I forgot to mention, but the BGs in this thing look awesome. Same with the BG sounds

