Most of our house's gutter downspouts empty into 4" pvc to re-route run-off under walkways or etc.One of them backed up last winter, so I detached the downspout and tried to manually snake the 4" sewer drain to no avail.A single day's power snake rental would have cost over 1/3rd of this Vevor, with the hassle of pickup & drop-off, and the possibility of needing it for a longer rental period and of struggling with a tired, beat-up device (has happened before with other rentals, and while the vendor made it right, it was a lot of unwanted nuisance for me).Our house is long with two sewer cleanouts and many gutter downspouts, and while a manual snake usually works, I expect the Vevor to save me considerable time and effort in the future for clearing other blockages and slowdowns.Wheel assembly was quick and simple, and the overall operation seems pretty obvious if one has experience with a manual snake.Per the instructions, I started with the boring bulb and progressed from there.Tips from my experience:- I inserted a washer between the halves of the thin, two-piece arrow cutter, else I speculate that they'd have twisted and bent.- A length of 3/4" PVC pipe is a good, inexpensive investment to prevent cable kinking.Our 4" gutter drain drops vertically from just above ground level, so the distance from machine-to-drain and then down to the first under-ground turn in the pipe is long enough that the snake would be prone to winding/kinking on itself. I set the machine about 18" from the drain, and cut a length of 3/4" PVC to thread over the snake (before mounting the attachment) to encase the cable for the vertical drop and prevent kinking.- PATIENCE. This is a low-cost machine and requires gentleness. I had to govern my impulse to brute force the snake (which - as I've experience with a manual 1/2" snake that I ruined - will kink the snake). I manually advanced the snake to resistance and then knelt on the switch, ready to stop if the cable started to bind, all the while throttling my impulse to run the power continuously and jam the snake into the impediment. Maybe that would've worked, but I didn't risk it.I also resisted the impulse to stick with only one attachment to save effort and time. It was a hassle to retract the cable and change attachments, but was the right approach for a good outcome.From the lower-quality power cord, motor, frame, drive belt, etc, this is obviously an inexpensive, home-user grade device, so it requires gentler handling & more attentive care (e.g. I surmise that the drive belt will degrade and the frame rust if left in the elements). I heeded the instructions and thoroughly dried the whole cable and drum (and frame), then oiled the attachments & cable before storing. Time consuming, but with diligent use and care, I think this will prove to be a reasonably durable, high value purchase for me.I commented to my wife that I should have purchased one of these years ago.