I hadn't realised this had turned into Mountain Buggy chat. I have a MB Terrain, and love it. That being said, the turning circle is a bit big, and the pram is a bit big - I tend not to take it far into corner shops, as there just isn't room. Some doors are too narrow for it. To turn, you just tip up the front and turn it. Easy.
I think we went for Terrain over Urban because the basket on the Urban was fabric, which didn't appeal.
Our Terrain is on its second child now, and it does still look pretty good. It helps that all the fabric bits come off and go in the washing machine! The bassinet isn't strictly necessary, as the Terrain is good from birth. We got almost no use out of it with DS1 (he preferred the sling in early days) but DS2, at 6 months, still sleeps in it, on the go. I hear the new models make it easier to put on and off, so that's a good thing.
We have had to change the tubes and tires a few times, which really isn't hard. The one hassly failure we've had is, the bearings in the rear wheels sometimes go wrong, making the rear axle turn, and then the wheels fall off. This only happens after a lot of walking, to put it mildly. And it can be fixed, you just have to buy new wheels (rather than just tires or inner tubes). I'm sure our pram has hundreds of miles on it by now, though.