I use one on my A1 mini, it is very effective at reducing the wobble/vibration and noise.Does anyone use a paving slab to dampen vibration and noise? I currently have mine on a reasonably heavy set of drawers and it seems to vibrate a fair bit even on standard print mode. I have heard you can get a paving slab and a bit of foam and it makes a big difference. I will be putting on a sit stand desk thats a little less robust than the drawers. They sell for £4.20 in Wickes so might nip and pick one up on the way home.
I've never had a problem with the A1 on overnight but the P2S is way louder and can hear it in the bedroom.