The Cloudsync is very good, I'm trying the trial version now but I don't need it, so won't take it up, I can see why more serious athletes would though.
For the motivational statisticy, friend stuff, Strava is just fine. As Rob says it's not a patch on Sporttracks which can do so much more, more accurately and can be used at many levels, I've not found anything as easy to use and as comprehensive, it goes well past what I need but it also does the simple stuff well.
I was just curious to see if anyone was using it and also I couldn't, at first, work out if it was extra but it is.