I wouldn't say that they are "the best in class". I have recently (~3 months ago) reported a pretty important security flaw in outlook.com (including its Office

I wouldn't say that they are "the best in class". I have recently (~3 months ago) reported a pretty important security flaw in outlook.com (including its Office 365 version). They have only found the issue a week ago or so (and it isn't fixed yet!). I like Microsoft, but their awful responsiveness doesn't make me want to use their products, or to work again for them.