I think it's a great idea, but a lot of the animations are still a bit clunky (slow/choppy). Polymer still has the leg up, but this is neat for projects where you know your user base won't have access to the latest and greatest browser.
I'm looking into using MDL for a redesign for my blog. Some of the layouts (e.g. the navigation and cards) seem more efficient than using Bootstrap.
> Polymer still has the leg up, but this is neat for projects where you know your user base won't have access to the latest and greatest browser.
MDL only loses support for IE9, which a) has a low market share b) will drop market share further as Win7 users upgrade to Win10 and c) heavy-duty websites have been dropping support.