Pretty sure Square disagrees, and they know what they're talking about when it comes to XCode. See PonyDebugger, a tool they wrote to pipe iOS apps' network connections and debug information through Chrome to take advantage of the developer tools: https://github.com/square/PonyDebugger

Now, you'd never write code in the Chrome Developer Tools (except maybe the occasional one-liner in the REPL). But the Chrome Developer Tools are great — best in class even — for profiling, visualizing, and debugging.