Storj - a decentralized, end-to-end encrypted cloud storage that uses blockchain technology and cryptography to secure your files.
Users act as decentralized cloud nodes essentially.
https://storj.io/index.html

Siacoin - a decentralized cloud storage platform that uses a blockchain to facilitate payments. You can rent storage, get paid host files, mine Siacon, or contribute to the project.
http://sia.tech/faq/

I am not favoring one over another, but am rather more interested in how the community feels about each project. The two projects seem very similar or nearly identical, which has contributed to my confusion in distinguishing one over the other. What are the pros/cons of each?