I just played through Yesterday, and I loved it. Of course the length was disappointing as I was enjoying it so much, but a short enjoyable game that plays well is much better than a long, unpolished, boring game any day of the week.
I loved the art style combined with the dark subject matter, it felt like I was playing a graphic novel. The controls and the partially unvoiced descriptions added to this, which makes me think it was a conscious decision on Pendulo's part, and not due to a lack of resources.
I was happy to give Pendulo my money in exchange for such an enjoyable experience
Did everyone else wait until after the credits? There was a little extra for those patient people. And it was different for each ending too.