Yep. I was very, very impressed. Coming from the Google Maps API I never expected that a web map view could perform as well as a native one, but it does.

Indeed, I maintain my own Leaflet fork for a project I am (occasionally) working on and I am won over as well. Are you using the Mapquest open data? Your maps are beautiful by the way.

I used OSM data with a sprinkling of NYC government data. If you're interested, I blogged about the process:

http://blog.untogether.co.uk/post/17554554409/i-had-no-idea-...