If you asked, I would say I like Gmail a lot. However, I have been yelling at it lately because it is missing some vital features.
Missing Feature 1:
The ability to instantly mark a single email as read. I do not like unread email in my box. I am happy when I see 'Gmail Inbox'. I do not like 'Gmail Inbox(23)' even if I know those 23 emails are garbage. Call me neurotic if you must.
To mark email unread, you can open it, which takes much longer than I want to invest, or you can use the drop down command. The drop down command requires clicking the tiny checkbox on the left, going to the drop down box and selecting 'Mark Read'. Sometimes, I accidently select Mark Unread. Or for more fun, 'Add Star'.
Solution: Add a 'Mark Read' button
I'd be happy to trade either my 'Archive' or 'Mark Spam' button for it. I will settle for a context menu option.
Missing Feature 2:
The ability to ignore future emails in a 'conversation'.
I subscribe to quite a few mailing lists and sometimes I lose interest in a thread. I want to push a button and have all future emails in the thread marked read. This way I am not annoyed by the Unread counter, but I have the message for historical purposes when I want to search through all the mailing list posts for an answer.
Solution: Add an 'I Don't Care' button
Ideally, this would be a button on the same level as 'Archive', 'Delete' and 'Mark Spam'. I certainly would use it more frequently than either of those three. If trading buttons is offsides, I'll settle for a drop down entry.
Lots of people want these two features, just read the comments below! Surely you are busy with your new office suite and don't have time to enhance Gmail. You are welcome to hire me on to help you with this. For a small fee and some stock options, I am sure we can get this worked out.