Lower connection establishment latency: SCTP over UDP using DTLS requires 4 roundtrips (that's worse than standard TCP) while QUIC (which includes DTLS like encryption) only requires 1 roundtrip for the first connection and 0 RT for subsequent connections, when it cached some information.

Thanks, I found this: https://docs.google.com/document/d/1RNHkx_VvKWyWg6Lr8SZ-saqs...

"One of the major and believably achievable goals of QUIC, is to predominantly have zero RTT connection (re)establishment, as was mentioned in goal 3a above. It is highly doubtful that SCTP over DTLS can come close to achieving that goal."

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I actually think the "zero round-trip-time" claim is a bit too strong. It's only 0RTT if you've communicated before, so in a way it's not a new connection. There's a privacy implication here -- you should wipe that state between communications to be more anonymous -- and also you only get "predominantely 0RTT" with an increasingly centralized web.

I'm guessing QUIC integrates better with HTTP/2?

Or enet (ignoring encryption).