I use Chrome. I'm a fan of the change.

The old bottom bar was annoying in different ways (taking up viewport space, disappearing when you still needed the shortcuts, downloads not being visible across windows etc.).

I like it when the Chrome team writes blog posts explaining their changes rather than just the "What's New" infobox once in a while :-)

Whether someone else did it first... Who cares. The browser is a utility. If someone else has a better way of doing things then why not bring that to your users too if it works well. Just like water, power and any other utilities.