Is the Samsung Galaxy SII X with Android 4.0 worth it?

I've had an outdated Android device for far too long now. The Galaxy Ace was fine to start me off, but it's gotten to the point that it frustrates me to use it. Having used far faster (and not to mention bigger) Android phones I am still interested in staying in the Android ecosystem, but some querks have left me questioning what my next device will be.

I checked out the Galaxy S2X online and it looks pretty good. The feel and screen size are great, and it seems pretty fast (1.5GHz dual-core), but what concerns me is that it's running Android 4.0, and I don't want to be left behind soon after getting a new phone. Is this phone worth it?

Link here: http://bit.ly/MYCQSU