This little guy has been the only consistent thing in my life for the past year, and watching him bounce around the house has really been a solid anchoring point in my life. A lot of stress, my own-self moving between several houses, dealing with animals that aren't mine making houses disgusting, life being so generally uncertain at any given time here in the ole US of A, and during all of that, I know if I walk over, hit the "MAX" button on my little shark, at least all the dog fur, the dust, and most of the dirt on the floor is gonna be gone in a few hours without lifting a finger. This has been so massive to improve my quality of life. Not to use Amazon Dot Com as my therapist, but when I got this I was dealing with loud, disgusting, dirty, not-cleaning-up-after-pet roommates and I was hoping for SOME saving grace and help in the house. The little shark has been my super hero, and honestly the cleanest roommate I've ever had. I went from floors tainted dark from fur and dander, to pleasant to look at carpets and hardwood floors that i dont even have to pre vacuum before inviting guests over.That sounds silly, and is probably exaggerated a bit, but for real, having this cheap little robot just do his daily cleaning, leaving me less stressed with my day to day tasks knowing at least my floor will be clean in hectic households has an importance worth more than money.THE GOOD:1.) It cleans. It does a pretty d*mn good job at it too. As I said above, life (for everyone) has been hectic the past few years. It seriously turned my gross floors (i absolutely didnt touch the floors for a week knowing it was in the mail, had to put it through the ringer when i got it) into something I could walk barefoot on without having to clean my feet before going to bed. It isn't perfect, it doesnt get as deep as a decent vacuum, but hey the first 80% of a job is the most important right?2.) battery is great. It'll run in max mode for at least a few hours, and it's never died before cleaning whatever floor i put it on. It's been running in my room the entirety of writing this review (about an hour since i hit go) and only lost 1/3 bars of battery. Battery is easily a 5 star, and you can get new ones on the shark site.3.) serviceability. As a firm believer in right to repair, this is massive. And why despite the bad down below, I plan on keeping this. You can take 90% of it apart with just your hands and no tools, and all the wear parts are incredibly easy to swap out. As of writing this review (june 2022) I can find all the parts online if i needed directly from shark.THE BAD: I would not buy this at full price. I got mine on a massive black friday sale, and on top of that, had a gift card from work. All in all, I only paid around $20 of my own cash for this which is probably why I love it so much. Its not without its fair share of problems though.1.) The internet will not work. I have tried /everything./ This is a home filled with IT professionals and resetting, using different devices, giving it it's own 5g, or 2.4, or hybrid network will not get it to connect. Tried 3 android devides running different versions, tried 2 IOS devices using different versions, and it just absolutely will not connect. Tried again after a few months hoping there would be some updates, no dice. Tried different router, nothing. Tried an entirely different house, different router, different service provider, and device (in case it wanted a change of scenery I guess?) and nothing. Definitely something faulty from factory. This is why it's 3 star. I'm sure if I could get it to connect, it would update and get modern firmware that fixes other issues, which will be listed below.2.) the pattern (without internet at least, which is the only way ive been able to use this as above stated) is ENTIRELY random. My roommate has a much more expensive ECOVACS Robotics - DEEBOT T8+ for a different floor of the house, and let me say, it does this sharks job better in every single way. The shark just bounces in every direction using a shotgun approach to clean the floor. It gets the floor clean, but it could do it much quicker and much quieter if it used any kind of AI or mapping to clean the floor.3.) doesnt know how to drive straight always. The random mapping works via shotgun approach as stated above, but it will occasionally miss spots as it forgets how to spin the wheels at the same speed and does massive archs over areas instead of straight lines. Its intermittent though so I cant tell if its intentionally programmed to do so. This alone wouldnt make me drop a star, its more of combined with other issues.4.) gets clogged with dust quick, losing suction. A bit hard to clean the pre filter. I do live in utah, where its dusty and i expect to clean any device with an air intake more than most other places in the country/world. That said, it clogs pretty quick (each use basically) meaning I have to get my portable air gun and spend 5 or so minutes blowing it out each use. Again, nothing horrible. Just worth noting.SUMMARY: This little guy cleans. He's kinda dumb, bumps into walls, gets stuck in small spaces on occasion, hates the internet (who doesnt at this point?) but he's been an incredibly welcome and reliable addition to my life and i dont regret paying the 20 or so dollars to get him.