The search engine I can't disagree with.
The email service... email is email to me, Google doesn't offer any features that Thunderbird doesn't already have && that I want. If you mean the search function inside of gmail, then yes, but that's kinda also just search. Or if you mean deliverability, that's not a function of skill but a function of being huge and if my mail server does something wrong then nobody is going to believe me if I say it's google's fault and google definitely isn't going to fix it. Or if you mean spam filtering, that's again because they just throw you out (into the spambox, but because google users rarely look there, that's out) and force you to use some (other) bigcorp for delivering just to them. The power that comes with being super huge.
It had all the potential to become the basis of Google+, but Google just prioritises building products from scratch instead of improving existing ones (hence 50 or so IM / video call apps).
I'm cautiously optimistic that Google is slowly recognizing the error prioritizing hot new projects over continuous maintenance and improvement of existing ones. Google Chat seems like it might finally be a proper successor to Google Talk after dozens of half-baked services: Hangouts, Voice, Allo, Duo, Messages, etc. etc. etc.