Length has less to do with it than the air tool and the compressor.
A 120psi compressor will run most tools well. However there are a good amount of cheap tools out there. The cheaper the tool, often the less efficient it is. Meaning it uses more air and air pressure. A 150psi compressor will work much better on the same length of hose.
I 've run 50' or 100' standard hose (3/8" I think) w/o an issue. If you go up in size to the 1/2" then your volume possibility is greater.
Overall though, look at your compressor and tools more than your hose.
And ps..you'll love that hose.
00 Regal GS: All kinds of cool stuff.