icefall

Apples and oranges. People who call tools like this garbage fail to evaluate trade-offs at their required complexity space. Distributed systems have extreme trade-offs. More features => more bugs.

I would definitely recommend that you reevaluate it with a newer version of etcd, as it has had some significant stability improvements post-2.0. I've been doing some fuzz testing of it lately and found that it has gotten much more reliable.