Come next March, I'm going to be missing Google Inbox. Completely changed how I use email for the better. I'm dreading going back to the tradition email workflow and hope to God that somebody builds something to replace Inbox in my life. I also miss StumebleUpon from years ago. I don't even know if the site still exists, but for me it died when it forced me to pick interests. The great thing about that site was that…
It's not quite as integrated, but all of the pieces are still there. For using reminders, you'll have to use google Keep. And for tasks without reminders, you can use Google Tasks.
On the plus side, it feels like Google stopped maintaining Inbox a while ago and it was getting horribly slow for me. The new gmail is amazingly responsive in comparison. I'm actually glad I made the switch for that reason alone (I had to make the switch before march because the Android Inbox App stopped working - it would crash within second after I opened it every time).