Does anyone use a roomba? If so, do you like it? Any drawbacks?

[Zambero]

6. Yes, run it 2 or 3 times most days

My wife has asthma, and running the roomba several times daily cuts back on household dust which is a major trigger. The newer models recharge fairly quickly so it's not a lot of effort to empty the dust bin and get it ready for the next sweep. Drawbacks? It's not a vacuum per se, but more of a surface sweeper, so there's still a need to vacuum carpets periodically. For hard surfaces, it's very efficient however. It also tends to get stuck in certain situations, such as getting wedged between a low recliner chair and rug. It will then shut off and can be relocated with whatever charge is still available. There's also a certain amount of skip and overlap involved since the Roomba runs in a semi-random pattern -- an onboard computer employs an algorithm to reduce going over the same area twice, but my observation is that it's not 100% effective.