Gmail has been a huge disappointment, to me.
Right now it is down.
Getting email is sketchy. Usually I get it but a lot just disappears into a void. It doesn’t get bounced back, it doesn’t wind up in spam, it just disappears. I know this because they were done during tests between friends, or they were mailing list posts, that wound up in the archives of the list, but not my inbox.
They don’t always thread converastions properly, and they make it difficult to have orderly quoting when replying to people in a thread. You also cannot unthread a conversation at will. You must have Google order your stuff the way THEY want it ordered.
They put stuff from some Yahoo mailing lists in the spam box.
They haven’t given out any invites lately, either.
I’m not pleased with Gmail, for a free service it’s fine, the space is nice, but it’s not the answer to all your email problems, not by a longshot.