I'm using 2 of these this for my multipad stereo & aux out in the rehearsal studio, when I don't need DI`s.
The 6 meters (18 ft) is sufficient enough to reach the mixer in most cases.
At home I use 2x 3 metres of this version, and when I need something longer I have 2x 10 metres twin jacks ready, but from another brand.
You don't want these kind of cables shorter than 3 metres in a playing set up;
because even when the mixer is next to you, 1,5 metres of cable is going to hang in the air a little.
Avoid creating trip-wires on stage or for that matter: anywhere.
The 1,5 metre version I would only take for permanent installation setups in a home setup, where the cable isn't visible or doesn't create danger for others walking around it.
Very happy with it. The REAN by Neutrik plugs give confidence working with them, feel solid to the touch as well, there's not any disturbance in the sound despite they are my working cables and get plugged in and out a lot.
Reliable. And it just looks very ok.
The perfect home and rehearsal better workhorse cable.
I'm using Cordial's expensive DJ cables for live gigs in the place of these, but this won't let you down as a backup either.