(Not OP) I know replying "seconded" is out of line with Hacker News guidelines, so I'll add that in addition to the above, I'm also curious about whether it can cooperate with any front-end frameworks
When I worked for Snipcart (HTML/JS shopping cart), many of our customers used webflow as their website hosting. Even though site builders and developer / third party tools are generally not a good match, Webflow seems to be the less painful to integrate with other stuff among site builders (it's not first hand experience, but still encouraging).