I think Webflow is hands-down the best responsive design tool, period. As soon as I tried the product, I immediately signed up for a monthly subscription even though I haven’t yet been earning money from using it. I see this as a small gesture to help support Sergie, Vlad and Bryant to evolve their product which in turn helps the design community. If I had money to invest in any company, it would be Webflow. I also just bought Sketch3, which I think will make a great complimentary (and affordable) part of my design workflow. Guys, let’s not forget, you can save money by not needing a Photoshop, Dreamweaver, etc license, as well as weeks of learning how to code efficiently or paying a developer to convert your designs in the HTML 5 and CSS3.
I recently introduced this tool to a client who is currently saving a thousands of dollars because now they can prototype a responsive HTML5 product and not need to pay a developer by the day. In this respect, Webflow is a massive enabler.
Regarding the CMS comments. My dream for smaller websites, I would be to give clients the ability to sign into a Webflow site, where all they can do is update the text and images inline - then I wouldn’t really need Wordpress or Drupal with their cumbersome, over-complicated and outdated admin interface.
Sergie, Vlad and Bryant, keep up the great work. I’m really loving the new features that you are rolling out. I’m going to keep supporting you and advocating your product to the design community 