2 month DE newbie here. I'm not familiar with types of brushes and the purposes of the hair. Please help me understand because so far, my cheapo AOS synthetic brush has been doing the job. But since I haven't experienced anything else, I don't know how other brushes feel or what they do. I don't know if this is right but, I like the stiff hairs from my cheapo brush hitting my face while I'm lathering up. It feels like its exfoliating my face. So...what should I get? Budget: $125. Thanks!