The Metro interface works well for a phone format device. Literally everyone I know picks up my Lumia and just uses it as if they've been using it for years. It just makes sense and is really intuitive. Also, apart from a big chunk of 3rd party apps written by morons, it's 100% consistent and smooth as anything even on the shittiest of handsets.
I've had at least 4 people I know toss their iOS device in favor of a WP8 handset in the last couple of months.
Windows 8 however is a stinking turd. It doesn't work for that in the same way that your metro signs aren't 40' advertising boards. Most of the UI is empty and pointless padding resulting in no visual cues and terrible usability.
Go and play with a phone sized device for a bit and see how you get on.
I've had at least 4 people I know toss their iOS device in favor of a WP8 handset in the last couple of months.
Windows 8 however is a stinking turd. It doesn't work for that in the same way that your metro signs aren't 40' advertising boards. Most of the UI is empty and pointless padding resulting in no visual cues and terrible usability.
Go and play with a phone sized device for a bit and see how you get on.