I don't know what older Roombas were like, but mine does a really good job. It doesn't pick up a lot of trash on one pass, but it makes many passes. Even with

I don't know what older Roombas were like, but mine does a really good job. It doesn't pick up a lot of trash on one pass, but it makes many passes. Even with many passes, it sometimes misses stuff that my old big vacuum would have picked up, but I run it every day or every other day. The carpets stay really, really clean. A side benefit -- to me -- is that I need to keep the floors Roomba-ready. If you leave laundry, cables, etc. on the floor, you've got a problem. YMMV if you have family; with some visitors, I can't use the Roomba at all.