Ars Technica:

The multi-platform, Web-based interface for the Apple Music streaming service exited beta and officially launched today. It lives at music.apple.com and is accessible through any modern Web browser.

In many respects, the design and layout of the site closely resembles that of the native Mac app. The layout of store pages is similar, and the visual language is the same. It has the same player controls at the top, and it also has the left-aligned navigation bar with “For You,” “Browse,” and “Radio.”

It’s interesting, though, that the website prominently features “open in Music” (in Safari on Apple devices) or “open in iTunes,” depending on the platform. This suggests that Apple still sees the website as a supplement to the native app experience, not a full replacement for it. Also, the Apple Music Web app lacks some of the personal library features that were grandfathered into Music from iTunes on Macs.

Personal preference (and old eyes) make me like the website version more than the iOS one.