I'd rate Android Studio as about a million times as good as Eclipse, and I've also used RubyMine at work so I understand the value of the JetBrains IDE as a transferrable skill. But...
IntelliJ is built in Java. So to use it you have to expose your machine to Oracle's vision of a runtime. Ironically for a just-in-time compiler, it seems to have absolutely no concept of just-in-time launching. Let your machine be forever burdened with Java overhead at boot regardless of what you intended to do that day.
It's also quite visibly not native software. It makes a pretty good stab at hitting a middleground between the OSes and is nowhere near Swing-level awfulness but expect normal cues to be absent and to go ignored. Git integration is one of the obvious examples: you may have your machine set up with an SSH key and all your other appropriate configuration but Android Studio comes with its own embedded version of Git that'll ignore all of that and insist you supply Google's software with your username and password. Presumably just using the Git you already have proved to be an issue across targets.
Then there's the real blight: that emulator. The default is painful and only a computer nerd could love the labyrinth of third-party options and associated manual configuration. Guess what? Being a developer doesn't automatically mean loving configuration. For me HAXM is a default install and lots of people love Genymotion but it feels like an issue is that the first-party tool just isn't up to snuff.
Other grab bag complaints: gradle wants a network connection before you can build anything. There's still no nexus between the IDE and the package manager; the one can know that you're trying to use API 21 and the other can know that API 21 is available but you're the agent that has to transfer the knowledge.
But I think Google can advance in leaps and bounds when it wants. Android 1.6 was awful. Even 2.x retained significant issues, both technical (no accelerated drawing) and in the user interface (that menu button that nobody ever spotted). So probably the future's bright.