I have the i9. The gear range is great for any city/urban/hill enviroment.
Only dislikes are the clicking noise in 6-9 gear, and something internal is rattling when im coasting over bumps (its normal, just annoying)
But i have 500 HARD miles on it and still is smooth.
Overall I love the hub, simplicity of adjusting/wheel removale, shifting at stops, very fast shifting while moving. The resistance in 5-7 gear is minimal, and those are the gears used most. 1st gear def has a good deal of drag.
Is the nexus redband quiet? That alone would be a selling point for me.