With the Samsung 90, you pay for the name. It's strong, yes, very strong, but only takes 30 minutes of vacuuming. Unless you're on the lowest power level and it's very weak, you don't even know why it's an option. The attachments are very good and the stand makes it a demo. Is it worth the price? If you're a Samsung fan, then I think so. But if you're not a Dyson for almost the same price, you double the performance with even longer battery life, but it's nice to use if it were around $399.