I'm not into cordless machines especially robots. Once my cordless machines die, I won't be getting anymore of them in my house unless if it's for collecting purposes. Unfortunately for me, I'm very picky when it comes to selecting a bagless vacuum for myself especially in today's market since there's not very many that I like. That's why for my ideal pick that I'd have a bagged central vacuum connected to a cyclonic seperator. Less costs of replacing any filters, the motors would last longer, I don't have to empty them out as much, and I don't have to smell anything as I'm vacuuming. Not to mention central vacs are the most powerful vacuums I've ever used by far, the most maneuverable, and the most quietest. If I'm unable to get a two piece unit, that's where I'd get a Vacuflo since they do a better job at keeping the debris away from the screens unlike VacuMaid. I would've preferred a Aqua-Air over a Vacuflo but those are so expensive. Otherwise if central vacs are out of the picture for me, that's where I'd get a Rainbow or at least a Filter Queen. They can reach areas that an upright can't do. I also appreciate the simpleness and the reliability of those two, I don't have to mess with any cyclones that can clog from build up and cause an odor. Unlike Filter Queen, I can suck up wet things with a Rainbow and their motors are serviceable like I can completely take them apart. Other than that, there's really no budget bagless vacuum on the market today that I'd buy. Gone are the days where you could buy a Eureka Maxima or a Dirt Devil Breeze because those are example budget bagless machines that I really liked.