Yes. I actually like it - but most people I've talked to don't want to manage email that way. I eventually switched away myself due to lack of support for other email providers & unified inbox.
I have a work Google apps account and a vanilla Gmail account and it is frusturating not having a unified inbox. And I keep getting "Network errors" with it (on two devices that I tried).
I recently dumped the GMail app for Outlook on iOS and it has just been phenomenal. I wish the search was a little better and I could see my GMail labels, but for now, it looks like I won't be going back.
How does that work if you're using Windows phone?
"Microsoft has been forced to get it, their stuff works great on all platforms"
I can't get IE, VS, or much else from MS to work on linux. Until then, MS isn't really working on all platforms.
If you use one email address sole for transactions, and one for personal emails, Inbox is actually pretty awesome. I don't know many people who do this though.