I have 2 new halos, and 2 of the new Bishops. I find the Halo's a bit louder than my Bishops, but make up for it with performance! I don't have to work the skin very much to get the shading I want, and since buying them I haven't put them down. Definitely a must have in your collection! I use Griffin disposable tubes and don't notice any vibration unless I crank the voltage past 10v. (which is only if I'm lining tough skin areas)