Differences between Low Poly Terrain Polaris v2 and Unity Terrain tools?

I've played around with Unity's terrain tools and they work well enough.
At some point I got low poly terrain polaris v2 as part of a sale, and I was wondering what the difference is.
I am making a low poly VR flight game. It's not immediately clear whether this third party option is better?
Anybody take a look at this?
https://assetstore.unity.com/packages/tools/terrain/low-poly-terrain-polaris-v2-144645#reviews