Search within emails is good and supports advanced search with "from:", "to:", "after:" and things like that. And if you're using a desktop client, like Thunderbird, search through IMAP with FastMail feels faster.
The only difference I found is that Gmail also indexes attachments, like PDFs. Which is a cool capability, but I wished for that only once in the last year and that's only because somebody sent me a PDF without a textual description of what it is. So it can be useful, but not a deal breaker.
The only difference I found is that Gmail also indexes attachments, like PDFs. Which is a cool capability, but I wished for that only once in the last year and that's only because somebody sent me a PDF without a textual description of what it is. So it can be useful, but not a deal breaker.