ell-kept Ikea demo houses. I set the D7 loose on my 1,900 square foot first floor with lots of irregular edges and obstacles in the way. It navigated them skillfully. I have four barstool chairs at a kitchen breakfast area and the D7 scooted in between each chair and wedged itself between the legs to clean as well as it could. It took two runs and ~3 hours (plus 90 minutes to recharge halfway through) to clean the floors on eco mode, which it turned on to do the initial mapping.

During the run, it never once got stuck under anything and surprised me at how easily it got under the couches and chairs in my living room, office, and media room. The only thing it couldn't get under was a particularly low entry table. I had to empty the bin once during its run (cat and dog hair) and remove a sock and a USB cable that managed to get picked up, but that's a user issue. The noise level on eco is just a bit softer than its turbo mode which itself is pretty loud but not unbearable.

While watching it go, I became worried a few times when it would do half a room or ignore an area behind a chair or under a shelf, but the D7 always came back and finished the job. My floors are almost all hardwood with a bit of tile in the laundry room so it didn't go over any carpets, but I can say that it worked amazingly on wood. I tested out the pause/resume function and the return to base and both worked just the way I'd expect. It does a cute little wiggle when docking itself, which I found particularly amusing. The floor plan reports on the app are nifty to look at and it did an super good job at recreating my house. I can see all the little dots where solid objects were (couches, table legs, etc.) and each room is more or less true to accurate dimensions. I wish I could label the rooms and tell Neato to go to a specific area, but maybe that's coming in a future release.

Anything that it drove over was picked up and the only places left dirty were the very corners of the room, which it got close to but never quite reached. If I added all the corners up, it would be less than a square foot of space that was missed. Sometimes it's a bit over sensitive when detecting objects, like a low hanging drape that it could have easily pushed aside (I did not have the 'careful' mode enabled) but I suppose it's better to be on the safe side.

After only a few days of use I can't say that I have a complete picture of how the D7 works, but the first few days of ownership make me feel completely justified in spending the money on the D7. Its continued performance probably relies on proper maintenance and frequent cleaning of the filter and brush, but that's a few minutes that I'm happy to spend for the quality of this little guy.