I have been using Sommer cables for many years (I have several 10m blue ones in my studio). At first, my wife and I only bought one (for her for the stage - because the cable looked nice.....), but when we tried the cable, we realized that it is actually a very high-quality cable. Very quickly, we ordered several more of the same cables (blue, 10m long) from Thomann, and we use them in our studio (on all microphones, even the highest quality ones) in daily use.
Simple - it almost sounds unbelievable that a cable of around 20 Euros can sound so good and be of such quality, BUT IT'S TRUE!
I highly recommend it to everyone! You won't be sorry. These are really great cables!