What were your expectations that have been unmet? Which projects were you excited about that have been untouched?

I'm extremely impressed with the progress that IPFS has made - I'm an active (daily) user, and have implemented archiving systems with their tools. Clusters and pinset management in particular have improved substantially, browser support for ipfs:// natively has started to roll out - to name two things I've worked with recently. The libp2p project itself is another example.