Glad you enjoyed the game TractorBoy!
1) Don't know how much progress you made on Asterion's optional project, but if you want scenes with the player character explaining modern technology to Asterion, that might scratch your itch if you feel like giving the game a replay (or keep it in mind for future builds). We're only scratching the surface of cute stuff the MC and Asterion can do together in 0.5, so rest assured we'll be adding a lot of these in the next story builds.
As for 2), we actually planned to add a sauna project to the hotel, but it didn't make the cut. R&D was kind of neglected in general for 0.5, hopefully we can add some more to an 0.5.2 patch once we're back from break.