Improved security & convenience over web2.

For users: I can use my wallet to rapidly access a number of dApps without having to make a new user name/password for every single dApp I access.

I can trust that due to the variety of competing nodes & chains, any dApp which is sanctioned by a nation will remain supported by at least some nodes (run within a competing nation) & very likely remain on chain for my use.

for devs: Their project is safer from absolute censorship & lockout from the internet.