I played this game first when it was 0.5. It was quite lengthy and the pacing was great. I was quite impressed. But then I played 0.6 and 0.7 and I was disappointed, it lost its charm. I'm also only interested in Sam, so to me the rest is like filler, although the other protagonist, I cannot remember the name, is also interesting, but I didn't like her content in 0.7 and she's not as fleshed out as Sam. I think it's better to wait and skip a few updates, probably more than one, since the development is going at a good pace anyway. I think I'll give it a try when it will reach 1.0.
Thinking about it, I don't believe there's any game that has enough content in a single update not to disappoint. It's always better to skip a few updates.
Anyway, this looks like one of the very few developers that has real talent, he is also a hard worker and has a kinki imagination to create very hot scenes and expressions. But he also strays by introducing lots of new characters and abandoning others, so he still has room to improve. Probably the demands he gets from some of his supporters make the story and characters to develop at an inconsistent pace and go in some not that inspired and expected directions.