Used on 8 and 10 speed chains at home a couple of times, assume it is just as easy to use outside...
So far I think it's easier and more comfortable to use than the one on my Crank Bros 19 thing, or the Park mini brute (both are difficult to gain leverage, especially with cold, wet hands).
I've got one of those, removed the clip on/in tools and plastic bit in the middle and it's down to 45g.