— Recommendations are independently chosen by Reviewed’s editors. Purchases you make through our links may earn us a commission.Robot vacuums are a dime a dozen, and most will cost you a pretty penny. But how do you know which ones are actually worth the extra spend and which ones will perform just fine for less? Quite frankly, you don’t—that’s why we’re here. Reviewed has spent hours upon hours testing these machines to figure out which ones will give you the most bang for your buck and have come up with a Eureka vacuum that will perform with the best of them—and it’s on sale today for just over $100.The Eureka Groove NER300 robot vacuum, which normally retails for $199.99 and is on sale for $149.99, falls by an extra $35.99 today at Amazon when you click the coupon code beneath the price to drop it to $114. That’s the best price we’ve ever seen on this machine!Even more impressive than its über-affordable price, however, is this device’s top-notch performance. This thing is powerful—we’re talking an $800 Roomba-level powerful. In fact, when we tested it out, it managed to suck up a whopping 11 grams of dirt per run, putting it on part with the iRobot Roomba i7+ ($799.99)—a.k.a. our favorite robot vacuum of all time.It also excelled when it came to “edge cleaning,” getting at nooks and crannies other models struggle to sweep thanks to its low, 3-inch high profile. Better yet, it handles obstacles, pushing itself up and over our high-pile rug with ease. You’ll want to note that it can be rather forceful in its efforts to clean the whole of your home, however, so chair legs and the like can take a beating if they’re in the Groove’s path.The app, meanwhile, while a little bare bones, is perfectly functional, allowing you to stop, start and schedule cleanings with ease.All in all, if you’re in the market for an affordable robot vacuum, this is one of the best you’ll find. We don’t know how long this coupon will stick around, however, so you’ll want to snatch it up while you still can.Get expert shopping advice delivered to your phone. Sign up for text message alerts from the deal-hunting nerds at Reviewed.Looking for hard-to-find essentials? Sign up for our Resources by Reviewed newsletter.The product experts at Reviewed have all your shopping needs covered. Follow Reviewed on Facebook, Twitter, and Instagram for the latest deals, reviews, and more.Prices were accurate at the time this article was published but may change over time.