I bought my first Roomba more than a decade ago. Unfortunately, cheap robovacs back then didn't have much in the way of intelligence or suction power, so it was mostly a curiosity that would bump around my apartment for a while before I followed up with a real vacuum. Whether you're like me, or you've never had one, then you're probably wondering if current models can do any better, and according to Valentina Palladino, the answer is yes. As she explains, "If you're someone who wants to spend as little time as possible cleaning your home -- or just someone who detests vacuuming -- then a semi-autonomous robot is a great investment." She reviewed several options that are available for under $300 and picked out a few that are worthy of slinking under your couch or into dusty corners.