Got this for my DS when he was 2. Still going strong nearly a year later and used daily for school run etc. Great thing is that its so well designed that if they get tired they can just stand on it and its very easy for you to push!
Went out of our way to avoid the hideous 'character' scooter Its also great because they don't catch their feet on the wheel at the back which can happen when you have 2 wheels at the back, it has brilliant steering AND it attracts looks from rather nice young men who think it looks cool (sad old biddy emoticon needed!)
I'm pretty much set on getting the mini microscooter for ds1(3) for Christmas. My only reservation is that we've just come back from a weekend in London and every one I saw (and we saw loads) was being carried by a parent !!
Just to add, mini micros are just fab! But, we bought one last Xmas for ds at 3.5 and it wasn't till he was 4 till he suddenly took off with it (literally). He's a cautious soul, so not surprised he took longer. But the steering foxed him for a while, kept bumping into the wall and giving up. So had almost written it off as a bad job. Then one day, he just went zooming off on it and we now love it. He's like an iceskater when he glides with one leg stuck out at strange angle... And it's easy to hook onto DD's buggy when he decides to walk! I can even wield the buggy round waitrose with it hooked on the side and a shopping basket attached to the handles (because he won't let it out of his sight so it can't be parked anywhere ).