Parkasaurus is a lot of fun to play, it's colorful, accessible and the subject matter is highly charming. The game definitely leans closer to the casual side of management sims, I'm unsure if it's even possible to fail a scenario, but the main campaign is varied enough that this wasn't an issue for me.
The developers were also smart to embrace a cartoony art style instead of focusing too much on the graphics, although I have to admit that I prefer the "realistic" dinosaur models. The rest of the game is equally lighthearted, I think the only reference to death I found was in a fast food building.
The most important upside of the casual difficulty is the degree of creativity afforded to the player in return, designing good looking enclosures is effortless thanks to intuitive terraforming tools and simple parameters. The grid design also helps streamline things and it's something I prefer on management games despite the simplicity.
I think Parkasaurus is a lot of fun, but if I had to criticize something I think the UI could do with a bit more customization for font size, colors, etc. Also, the dinosaur tier system didn't make much sense to me, it feels completely arbitrary. I'd rather have a different mechanic in place, like synergies between dinosaur families, specialization or dynamic appeal. I mean they implemented the latter for french fry stands. Not to mention it's inevitable that someone's favorite dino will end up in the lowest tier.
To conclude, I would recommend Parkasaurus to anyone who has a casual interest on dinosaurs and management sims. It's a really fun, lighthearted game that allows for a great deal of creativity. I generally like more complex games, but this one still won me over.