Yes, basically it's much easier to work with and the tools/development experience are much better - which correlates to being able to deliver faster, sometimes

Yes, basically it's much easier to work with and the tools/development experience are much better - which correlates to being able to deliver faster, sometimes much faster. Time to market is often a very important metric for a web app. However SPAs make for a smoother experience. Most client facing apps live or die based on the user experience, and there are very few Product Managers who'd agree to a full old-style multi-page app. As far as I'm concerned there are only two scenarios where I'll prefer an old-style app over an SPA: 1. when building internal apps for employees 2. when time to production is extremely important.