Does it intelligently separate "promotions", "updates", and "forums" emails so you can focus on emails that are actually conversations? I used fastmail for a while and it didn't do this, and it was _so_ much harder to keep up on my inbox that I switched back to gmail :/
Interesting. This is the single feature I hate most about gmail. It keept misclassifying important emails and I missed deadlines for taxes, payments, etc. I ended up having to read "All-mail" to avoid missing stuff.
