If vibration goes numb on you: this is the category to try. Motion keeps registering where sustained buzz stops. That is the main reason people move over here.
If you are choosing between them: stroke length over speed. A long slow stroke reads as thrusting. A short fast one mostly reads as vibration, whatever the box calls it.
If you want clitoral contact too: a thrusting rabbit. The arm stays put while the shaft moves, which is the combination most people are actually after.
If noise is a factor: expect more of it. A motor driving a shaft cannot be as quiet as one buzzing. If you share walls, the discreet vibrators page is the better aisle.
On lube: considerably more than usual, and reapply. The toy repeats the same motion without adjusting the way a person would, so it runs dry faster than anything else here. See water based lubricants.
On cleaning: check where the shaft meets the body. Moving parts have a seam, and that seam is where things collect. A toy cleaner and a proper dry are worth the extra minute.
