Spoke is actually fun to use since the process of publishing to Mozilla Hubs is amazingly quick. I can iterate on a design so much faster than with things like Unity or other similar products.
Pros:Super easy and intuitive and 100% web-based. Removes major hurdles of VR space creation. Supports web standards-- glTF (glb) file format.
Cons:Hoping it can support collaboration (multiple users) in the future.
Newji