The main story can be completed in less than 2 hours if you're focused on speeding through it, but there are plenty of fun little mechanics and things to see. If you're a completionist, there are a few achievements you'll be going back to specific levels for.
The art-style can be described as polygonal lo-fi (look at those product screenshots) and is nice to look at, but it won't be for everyone; obviously no ray tracing, duh! But, this allows for lower-spec computers to also play it (check your specs before buying!)
The music and sounds are enjoyable, and you might catch yourself humming some of the tunes afterward.
Let loose those duck emojis!