I row through every single gear every single time. I only use 6th if I'm at a steady 65+ unless I hit a hill. Personally I don't like lugging the engine, so I down shift to 5th whenever there is an incline so I can keep it at or above 2k RPM while going up hill.
Took me maybe a week of getting used to, but that's because I came from a 5-speed Focus. I think the power took more getting used to than the shifting.