Mighty impressed with both the wheels and the sales/installation service provided. Starting with the wheels themselves, these wheels with Continental Grand Prix 5000/25 Mil are really fast, quiet and ominous in low sheen black! Braking provided by Swiss Stop pads is very good. The icing on the cake are the DT Swiss 240 hubs. My reference point is the also very good Zipp 303's with their lower aero profile and own brand hubs.
But for riders like myself looking for speed and enough comfort to ride long distances, the Realspeed wheels really bring it all together.
With about 200 kms done, I remain very surprised with the 55's dominance over 30+ kph cross winds and ease in headwinds. I expected at least some buffeting but virtually nothing. Bad road surfaces are a bigger problem by far. Finally, climbing moderately steep hills was simply refreshing. Perhaps control over the winds and the superior hubs allowed me to dominate the climbs.
On any measure the Real speed RS 55's their rider a real contender.