Welcome to Microsoft To-Do
todo.microsoft.com
todo.microsoft.com
So many to-do apps, I don't think one has solid conditional tasks or robust scheduling (repeat on 1st Monday after 60 days has passed, etc).
I'm actually thinking of going back to a paper planner. It's a lot easier to grab a pen and add something to a list than type it into a todo list, set a reminder time, etc.
It interoperates with Exchange's Task items and is expected to be Office 365 "blessed" soon enough.
I mean they could rebranded the app if they did have to call it Microsoft To-Do; and maybe changed the colours and all.