I first purchased the Eufy 11S after doing MUCH research and spending time communicating with Eufy. (They have wonderful, responsive personnel!) Took all of two minutes to get it out of the box, set it up (attach brushes) and get it on the charger. I let it charge overnight. The next morning I hit the "perimeter button" and off it went! I scooted around in front of it, pulling baskets, dog crates, cat scratching pads, shoes, plants, magazine baskets away from the edges of the wall while it came along after me and cleaned places I probably haven't reached in ....some time! First time around, one dog (8 lb Papillon) hid in the next room; the other (12 lb poodle mix) followed it around. (Allowed two perimeter runs the first time since some places hadn't been done in ages and I just wanted to make sure!) Then hit the "automatic" button and as it made its way around the room, I replaced stuff along the walls. How easy could that be?!
Although there's no need to move everything every time I vacuum, it's so easy that I often find myself moving alot! (36 years of "accumulation" - aka "clutter" here). If the phone rings, no need to shut off the vacuum; it's no louder than a desk fan and I can easily talk on the phone or listen to the news on TV.
My 2000 sq' cape home has mostly medium height carpeting (a combination of cut pile/berber), even in the kitchen and dining areas (breakfast area and formal dining room). It also has tile (hallways, bathrooms), hardwood (two of three bedrooms) and brick (family room) with a large area rug. Eufy tackles it all! It's little "corner" brushed do scatter the birdseed on the bricks, but it seems to manage to pick it all up eventually as it makes several passes in every area when on "auto". The amount of pet hair (and my hair!) it picks up is astounding, as is the amount of fine dust it captures. (I have allergies and this is a blessing!!)
Yes, I do clean the brush roller and the dust bin frequently (usually with every "full time" vacuuming; this vacuum will last at least an hour unless I put it on the half hour "single room" cycle). The dust bin empties easily into the trash without dust flying all over the place; with the included brush and a couple of strokes, I gently brush off the filter and haven't yet replaced any. It takes a couple of minutes to slice through the hair wound around the brush roller and pick it off using the included "comb" and my fingers. (Ok -- don't like the idea? When was the last time you cleaned the brushes on your big vacuum's powerhead to ensure its efficiency??) So easy to do this with a little vac that you can set on the kitchen counter. (Turn off the power switch on the bottom first.) Three minutes to clean it up, turn back on, set near the base and send it "home", wipe off the kitchen counter and you're done. No need to struggle to get the canister vac, it's heavy power head and wand and hose back into a closet somewhere! Need it upstairs? Carry it up under one arm (don't forget the remote). It's never fallen down the stairs.
Because I'm retired and can be home, I haven't yet used the wifi function, other than to set it up (easy).
Because Eufy is so quiet and convenient, I vacuum the most used areas much more often than I would with my heavy conventional vacuums. There is probably no doubt that the suction on the canister or upright is stronger, but because I use Eufy so often (up to several times a week in high traffic areas), my husband is commenting that the rugs look cleaner. No time for shoes to grind leaves and dirt into the carpeting! (And no, my family does NOT remove shoes; and the two dogs and a long-haired cat are in and out on our large yard frequently.)
The magnetic strips that come with this unit can be helpful when I have last-minute company coming for dinner so I let Eufy loose while I'm cooking and want it in that area but not under my feet. Otherwise, I simply close doors to keep it where I want it.
I've learned how to position chairs around the dining tables (two tables with a total of 10 chairs) so Eufy can scoot around legs and under the rungs, doing a great job of cleaning under everything. It only got stuck once (hung up on a wire dog crate handle), so I've adjusted that. And it easily finds its way back to the base if I guide it back to the right end of the house (using the remote) when I'm done in the more distant regions.
I have now "loaned" the 11 S to another family member who has little time for house-cleaning and can use Eufy's help! (Her dogs are 70 pounds!) I purchased the 30C. The extra suction makes bird-seed pickup faster (lol). Both units do a great job! I would recommend either! I like the digital display on the 11S remote so you know what mode you're currently using.
And now the dogs ignore it, as you can see where our poodle-mix yawns as Eufy vacuums around her dog bed.