Hi all,
Sorry for the late reply, only just seen all these messages.
I haven't used it at any festivals but I imagine it would fare well—the mudguard will keep the bottom of the gig bag clean for a start! It has the same size wheels as the Bass Buggie, but because they are mounted proud you get more ground clearance; the only downside is the wheelbase is narrower—7" versus the Buggie's 13.5", in reality though I've found that the far greater surface area cradling the bass means that it feels much sturdier in this so none of the oscillation that we've both experienced with the Buggie, it's also more responsive to cornering. Having a bit of 'armour' around the lower bout of my bass has been useful in London tube travel...
@Happy Jack, you are welcome to come and give it a test drive if you like as I can't find a box to post it to Lawrie.
The only reason I'm keeping the Buggie over this is purely down to size—I've played a bunch of smaller jazz clubs where space was at a premium and trying to find a space to stash a gig bag and this was a challenge (same goes with my flat!), otherwise I'd be keeping it.