I had a Nokia N9 that shipped with the ill fated Meego OS. Hands down the smoothest operating system I've ever used on a mobile.
Anyway, with faster internals, a sharper screen and an up-to-date browser, I would choose Meego any day of the week. Shame it wasn't the case.
Well, it's still better than what Symbian provides (I also have an N8). As long as I can browse and post to HN and reddit, use it for off-line GPS, playing music, sms and phone calls, it works well enough for me. It even works for tethering with a USB cable.
I suppose once the battery goes bad, I'll have to move on to something else :)