The new paginated report email subscriptions are great, but the only thing that's preventing us from using them over SSRS is that unlike SSRS, you can't have the report page embedded as HTML within the email.
Sure, you can choose to show an image preview of the report, but crucially this doesn't allow easy copying, pasting and Ctrl-F-ing for values within the email, and it's more difficult to get it to look perfect
It's already possible to manually export the report as MHTML, so it seems like the functionality is almost all there - hopefully you'll add embedded HTML email subscriptions sometime soon.