This game is pretty good. The story is great IMO, and I like the interactions with the big and little sister so far. The main problem that I have with the game is that the way they decided to implement pause, and the menus in general just feels wrong.
You need to use the phone to pause and do all normal save, load, gallery etc operations. The first problem is that you cant use the "esc" button to bring it up. Instead, you need to manually click the phone button to bring it up, which is annoying. The second problem is a result of the first. Since there is no phone icon during scenes, it becomes impossible to pause, save, load, or do anything of the sort during some interactions, and you need to wait for them to end before being able to do anything. This problem is especially annoying since sometimes I miss the time to save before an important interaction, and is impossible to go back. It can be annoying if you like to save before important points in the story.
However, these are small issues at the end, and did not affect my experience too much to the point of being unbearable. An overall great game so far.