> LWTs
Single partition only. Poorly named, sure. Feature-wise though pretty comparable to peer offerings. Fortunately general purpose transactions are coming next year.
> material views. Added, removed, readded, deprecated.
No; added, then marked experimental. Never removed or deprecated, though they may be superseded before long.
> error handling is asinine
Fundamental distributed systems problem that is just more apparent with eventual consistency. Failure does not have a certain outcome.