IMO, this is NOT an ecchi, harem show. This is full on heavy drama with very little hints of ecchiness.
You should watch this with an open mind and you should have complete control of your rage. If you can watch this, I think you're ready for SCHOOL DAYS.
You are dropped off in the middle of nowhere, all you know is your name and you are waiting for some hint of back story. You get none. This will continue until the last few episodes of the second season.
People who would like to try it, should have patience. The story is great. Just wait and see. The story has some School Days elements in it (one of the heroines is like Kotonoha without the violence.) Also, the setting of the story is really something refreshing for me and it adds more to the plot.
Please do watch it if you have the chance or if you want something different.