I’ve had 4 iRobot vacuums over the years since the Roomba was introduced. I kind of hate them. On the one hand, they do a decent job of keeping things neater all the time, but every one of them quit working within two years (mostly due to failed motor drivers). At $350 each (I see they cost quite a lot more these days) they just weren’t worth it, especially compared to a similarly priced standard vacuum. I’ve been using one of Shark’s upper-end models for about 5 years. It cost about the same as a robot vacuum, does more, lasts longer and has no expensive consumables. It’s excellent, especially regarding maintainability. I can quickly and easily disassembly and clear/clean the entire air path with no tools.