I'm going to be frank... for people who liked the original game and those who didn't, this is a waste of time. Do I sound like a jerk? I'm not trying to be... I don't think I've ever come across such a weak direct sequel (since it really is a full game). I sampled one of the new heroines, one of the main heroines from the original game, one of the secondary heroines from the original game, one of the sub-heroines from the original game, and one of the 'extra' heroines from the original game (Tia>Yurina>Silvia>Jubei>Minamo). As a result, I came to a very straightforward conclusion...
... this game is crap. Oh, in terms of visuals and sound effects, it is massively improved. The main story, such as it is, has a few nice battle scenes too... but in every single path, after the shared scenes are over, it slips into a third-rate charage 'lovers' pattern. The actual romance is lackluster, all the heroines already love the protagonist so there is no struggle, and all conflicts were either resolved in the previous game or in this one.
So what is there left to experience? Ichaicha and h-scenes, my least favorite part of a VN. There are no individual conflicts, difficulties, or troubles to resolve. There are no grand difficulties that are unique to each heroine path... so what you have is a bunch of 'industry standard' post-drama heroine-protagonist lovey-dovey BS that drives me up the wall.
That isn't even mentioning that the new heroines suck, lol.