It's not an exact comparison, but maybe it will help... I run Schwalbe Stelvio 20 x 1 1/8 (the only size Stelvio available for 451 tires!) tires on my Bike Friday Pocket Rocket. This bike is set up as a road bike, and it is also the bike I use for commuting in the summer. I've been very happy with the tires.
When I do the calculation from inches to mm, it comes out to 28 mm. These tires seem to be a bit narrower than that, but they are certainly not as narrow as a 23, so I don't know if it's really a fair comparison. Hopefully someone else is using these on a 700c wheel.
--- Denise