What I found was a game that was functionally identical to the the first Gravity Rush. Yeah, it had visual upgrades and looked much prettier. But, besides that, there wasn't anything new about it compared to the first game. I'll definitely be skipping the full game of Gravity Rush 2.
Nier: Automata, on the other hand, I knew almost nothing about. I was going in completely blind but I heard a ton of good things about it. I found this demo to also be a let down. It was an extremely generic hack and slash game. I don't know what everyone was freaking out about. I mean... I guess it looks good? For me, graphics matter less and less these days. There was nothing compelling about Nier: Automata for me. I'll keep an eye on the coverage for this one in case I missed something critical about it but I'm not expecting much.
Overall, both were a couple disappointments but I'm glad I tried them anyway. It's nice to sample a game for free and realize you won't need to drop money on the full release later.