I'm somewhat ambivalent to it. It looks like it's going to be a good game, but personally I enjoy FOBS a little better because it's not just gameplay and H scenes, it's got a fair bit of puzzle elements (with the actual puzzles, finding out where to go and how to get there, not to mention figuring out how to capture enemies) and a few platforming and movement elements (albeit not as big a selling point for me as the puzzle elements) thrown in there as well. Of course, we'll have to see how the game develops from this point on before really in-depth comparisons can be made, as this is literally the first possible version of the game that can be played at this point in time compared to FOBS which has a few years of development time put into it thus far.
As of now, I don't like it as much as FOBS. But there's still a lot of time before the game is finished, so feelings may shift.