Blanc is very cute, the visuals are simplistic but effective and the music pleasant. I'm always on the lookout for low commitment co-op games and this seems to hit that niche.
Unfortunately performance on Nintendo Switch is quite poor. I could push through that but it also has weak checkpointing. Me and my partner played through about half the game in a sitting, but when we booted the game up the next day, we lost progress on the last section. Which normally I would be fine to replay but it was the worst sequence in the game, a dreaded escort mission with some dumb (albeit cute) ducklings.
Wasn't grabbed enough by the first half to want to trudge through that sequence again, especially with the performance issues.