In regards to noise, it will depend on what you use. You may be lucky with using a good tube, tyre, wheel or something, like myself, use a cheap wheel that came with the bike and it’s not even perfectly round. The drum on the turbo, it doesn’t seem to be exactly centered either. There is a lot more opportunity for the noise on Snap than on the direct drive. By no means any of that is of an issue to lose sleep about. Rather just to mention. Snap is a great unit in my experience. Also, mine is gen1 snap, perhaps later models are made with better tolerances.