I can understand wanting objective, unbiased information about the sound of cables, or other equipment, before trying them for yourself. Unfortunately, it is scarce. This hobby is fundamentally a subjective one. It is ultimately about what YOU hear, in YOUR system.
There are areas of general agreement, but no one can tell you for sure what a particular product will sound like to your ears, in your system, or even if you will hear a difference at all. This means that there is an inherent element of risk. You do your research, read reviews and forum posts, talk to any friends or acquaintances who have experience with it, arrange to audition it somewhere, if possible/practical. Then, once you are reasonably assured that it is likely to make a positive difference in your system, you take the plunge.
There are areas of general agreement, but no one can tell you for sure what a particular product will sound like to your ears, in your system, or even if you will hear a difference at all. This means that there is an inherent element of risk. You do your research, read reviews and forum posts, talk to any friends or acquaintances who have experience with it, arrange to audition it somewhere, if possible/practical. Then, once you are reasonably assured that it is likely to make a positive difference in your system, you take the plunge.