Not great but not bad.
I've been using Etymotic plugs for many years but thought I'd give DownBeats a try. I find them more comfortable than the Etymotic and I like that they're shorter and thus less obvious. I find that the Etymotic earplugs block sound a bit better though, and it's easier to have a conversation with the Etymotics; with the DownBeats I hear my voice echoing awkwardly and loudly. I love the case that these come with. It stays on my keychain so the earplugs are always handy.
Rating: 4 stars