Hey Milkface, I'm in Ottawa too!
I actually don't have a H2H, but tried on a friend's. DD wasn't overly excited about it, but did not fuss as much as with the Maya. The new native is ok with her for a little bit, but with both the Maya and NN the fabric is so stiff, I think that's what she finds uncomfortable. I'm pretty sure I'm using them both right, but who knows? I find the maya particularly overwhelming, so that one I might need real life help for!
HOWEVER, since I'm so tired of trying out (and paying for!) different slings, I bought some cheap fabric yesterday and made my own wrap. She seems much more into that, and I think I just might "lose" the snugli. The only thing is that in summer, it would be really really hot. But a padded sling would be hot as well, right? What _wouldn't_ be too hot for the summer? (I know, an entirely different thread).