There is no one definitive answer to this question. Some people report that soundproofing works for them, while others say it doesn't make much of a difference. The effectiveness of soundproofing will depend on the specific situation and how well it is done. One thing to keep in mind is that soundproofing usually only lowers the volume of noise, it doesn't completely eliminate it. So if your neighbors are particularly loud, even with soundproofing in place you may still be able to hear them.

Noisy neighbors can be a major annoyance, and in some cases, it may be necessary to take measures to reduce the noise levels. Soundproofing is one option that may be worth considering. However, it’s important to note that not all soundproofing products are created equal, and some may be more effective than others. It’s also important to consider the severity of the noise problem and how much money you want to spend on solving it. In some cases, professional help may be necessary.