Having had much the same experience (thanks
Qmil679!) I'd say you won't regret it. Came for the dialogue, stayed for
the tsundere.
As pointed out by Qmil679, you should consult the walkthrough at least once to see which routes are currently implemented and to gain an understanding into how accessing them works. Do take note that the routes also have alternate endings based on later choices. But I don't think you need to obsess over the actual choices as it's mostly about focusing your attention on a specific girl (for better or worse).