Is it safe to download custom content for my sims 3 game?

So basically, yesterday, after a few hours of downloading the Sims 3 and all the expansion packs, encountering 200 problems along the way, ranging from unknown errors to installation problems and speaking to a couple of advisors to help me with installing the game. Thankfully, with all of that generous help, i successfully installed the Sims 3 and all of the expansion packs with it ( apart from High End Loft stuff i was too lazy to download it). My expansions right now that are downloaded are Sims 3 University Life and Late Night. So im having a great time playing thr game, and i stumble across the Simd Resource site with custom content ( more specifically a hairstyle) that I ABSOLUTELY ADORED. So i really want to get this cc ( its called the Quinm Fabray hair from Glee), but im terrified it will cause problems to my Sims 3 game, and i do not want to have to repair all of the problems ( if i encounter some) if the cc does create some. Any opinions? I really want it, but I dont want this to destroy my game...