Some things like using the bathroom will not be affected by the removal of the mosaics, so it's safe to assume that anything that affects the gameplay of the game won't be affected by using this mod.
The only way to know if a certain feature in The Sims 4 - No censor is good or bad is to play the game with the mod installed and see for yourself what kind of changes you can make. Some people might say that it's a modding tool, but the fact is that there are many different features that the modders have put into this one. The Sims 4 - No censor is a game mod for The Sims 4 that has been created by Sim Guru, who is a very accomplished person in the video game industry.
Softonic review How To Remove The Sims 4 Censorship