Polymer isn't as tapped into the current JS trends as React, and isn't as established as React or Angular, and it's been somewhat hampered by skepticism of the

Polymer isn't as tapped into the current JS trends as React, and isn't as established as React or Angular, and it's been somewhat hampered by skepticism of the web components standards. I believe Polymer is actually out ahead in terms of it's technology and philosophy in many ways. With native Shadow DOM and Custom Elements support coming to a majority of browsers this year, I think the skepticism will subside, more people will realize the benefits and Polymer will get more and more press.