
Spike makes inbox zero nearly effortless, with easy mass archive and trash and built-in unsubscribe and blocking. Organizing by conversation participants and presenting the thread like a chat conversation fixes the problem I've had with virtually every other email client where you can't tell which direction the conversation is going or where the newest message is. It just makes sense. Review collected by and hosted on G2.com.
The only bad things so far are lack of keyboard shortcuts and customization. If I could use gmail inbox commands to archive/trash/spam/etc it would be absolutely perfect. I had a problem with archived email reappearing in priority but the customer support was quick to respond that engineering was working on it. It was fixed within a day. Review collected by and hosted on G2.com.