We've had 3 different pet strollers over the years. This product from YOYAKER is more versatile but also the most expensive. Out of the box, set up was easy and straight forward. It is built on an aluminum tube frame but uses quite a bit of plastic throughout. I don't feel this will be an issue for our 16 lb pug, but I would not recommend for dogs over 30 lbs (as noted by the manufacturer.The stroller does feel sturdy and well planted. Unfortunately, the pictures are a bit misleading -- there is no active suspension in the front. Instead, they are just articulated plastic pieces that cover the tube frame (akin to strut boots on cars). It is wider than other pet strollers I've owned (could be a pro or con I suppose) and provides plenty of space for our pug. The stroller includes 2 straps with clasps that attach to a dog harness and keep them tethered securely inside the carrier. There is also a clamshell cover than can be readily open/closed via zipper depending on the weather conditions. The wheel locks work as intended to prevent the stroller from rolling when unattended.The biggest benefit of this particular stroller is its ability to easily separate the basket from frame. The process is simple and once detached, the basket works great by itself as a carrier. However, I do not recommend using the basket in a car since there is no way to anchor the carrier to a car seat.The frame also collapses quickly via triggers on either side. This allows for easy vehicle transport or storage, as the frame if fairly flat and compact when folded.Overall, this pet stroller from YOYAKER is versatile but also expensive for what it is. There are plenty of competitors in this space and YOYAKER does offer some advantages. But it isn't perfect and there are some areas that could be improved upon - better suspension (very gimmicky as-is); less awkward carrier separation mechanism from frame; include 2 different size cup holders (current ones are too small for our dog's travel water container); adjustable strap length to tether the dog to the carrier.I owned a few pet stroller and thought this will fit the exact need for me and my fur baby. For the price I was expecting quality frame and a much better value and quality. The stroller is easy to put together. The frame is light weight but when you fold it it’s still take wider area than what I wanted.The tires are a bit cheaper and is not all terrain, I was expecting it will be coz the price tag is high.I like the bottom area where I can store stuff not only for my dog and or cat (I use this to both) and I can place a small bag for me.The screen/roof part is easy to close and open, not sure how water proof it is but for light rain it seems to keep them dry.Maneuver easy and push good, just I’m expecting something so much better I guess for the price listed here. Honestly my $139 one is as good as this and that one even comes with toys.For the quality this can hold up to 15-20 lbs nothing more.7/9/2022: YOYAKER Pet Dog Stroller for Small Medium Dogs, Small Dog Stroller for Dogs up to 33lbsThis is a decent small dog stroller. It was reasonably easy to assemble, and rolls around easily. The main frame is metal but the wheels and wheel attachments are all plastic. I think it is sturdy enough for a 10-15lb dog, maybe 20lbs, although I do not think this is a good choice for dogs that are heavier than that. My 17-18lb bichon mix would not comfortably fit in it.Overall - I would give this 4 stars for a stroller intended for dogs under 15, maybe 20 pounds. But if intended for a dog up to 33 pounds, I'd have to take off half a star - I don't think it's sturdy enough for dogs that heavy. Of course we can't give half stars, and 3 is not enough, so I'm going to give it 4 anyway.I'm not sure how these little wheels would handle various terrains, but I don't think it would be bumpy enough to cause a small dog (<15-20lbs) discomfort.It comes with the frame part assembled except for the wheels. You just have to add the wheels and the frame is ready. The "cradle" comes collapsed, with the canopy off. You un-collapse the cradle, install the canopy, then place it on the frame. Simple enough.It's pretty easy to collapse the frame, although I am not sure if it can be collapsed with the cradle still on. All of the documentation shows cradle separated when the frame is folded. Perhaps collapsing the cradle will still allow the frame to fold enough? I may try this at some point, although since I can't actually use it for my dog it's not like I'm going to be unfolding and re-folding the stroller over and over again anyway.When you press against the floor of the cradle, you can feel the support bars and the bolts. There is a cushion that is definitely thick enough that a 10-15lb dog won't feel it, but again, a larger dog might find it uncomfortable even with the cushion.The instructions aren't the worst ever, but they aren't good either (plus mine came all creased and torn up). They aren't that well translated into English (for example, "...use your hand to catch cradle plate to pulling up, and can be removeable success") but they are decipherable enough overall. Oddly, the instructions never tell you to install the back wheels. It wasn't too difficult to figure out, but it still seems an odd thing to leave out. Were they supposed to come pre-attached?There is also a red plastic thing that looks like some sort of hook (?) attached to the frame. There is never any mention of it in the instructions, and it isn't attached to anything in any of the product pictures. I have no idea what it's for.Retracting the stroller is pretty easy. There is a wide center button with a smaller button right next to it. You have to press the smaller button and then the large one will go in all the way and you can fold the frame.