For the most part, this is exactly what I ordered, and will serve my purposes. The sturdiness is questionable as there are a few areas that didn't feel sturdy at all, and the screws given to secure those areas felt stripped.
As for assembly, it required a bit of banging to lock things in their proper place.

The cabinet is sturdy. The cabinet is difficult to assemble.

After being an idiot, and planning to return it, because I was missing a part, I realized two of the pieces were stuck extremely tight together. Takes a little bit of work to get it together, but it's high-quality and sturdy. I thank their customer service for putting up with my idiocy. Excellent quality, and I will definitely buy from them again

Assembled by one person in about one hour. I put it in the basement to use as storage for games and puzzles.

The fact that this item is wheeled makes is super handy in the garage. You can move it around to new location as needed. We are VERY glad we decided to order this one!

The shelf is nice, sturdy and arrived in good condition (in two heavy boxes). One box is quite tall. It was easier for us to move the bigger box with two adults and possible but difficult with just one. The other box is easier to carry inside. All pieces are included and the wheels (which come wrapped in plastic film that needs removed) are very heavy duty and all four of them have locking mechanisms. There is a good range of height options for the shelves which go in easily without screws or bolts. The lock is already installed into the doors, and it does work, comes with a set of 2 keys. Might keep a kid out, not anyone really determined, because of the way the doors attach. Everything else has to be assembled.

Directions are okay. Could use a few more diagrams to clarify some steps, but we did figure it out and complete assembly in under an hour, mostly with just one person.

You will need a 10 mm socket (or a 10 mm nut driver as an alternative, which was not included) to secure the back of the bolts because they sit in a small area behind a ledge. If you have one available, it will help speed up the process of assembly and make the whole process much easier. If you do not have one, you can still probably do it, but you might find it frustrating and difficult, especially if you have large hands.

There are bumpers that screw on to the bottom edge/corners to keep things safe when you move it around. Also, it rolls around equally well when empty or filled with things.

The white color is nice for an area that is darker or windowless. Brightens it up instead of absorbing light like the black cabinets do.

It takes a large area to assemble and would go smoothest when clear minded and not tired. And you might want to empty your indoor garbage can first because it's well packaged and there's a lot to be thrown away/recycled.

You will be left with huge cardboard box parts to dispose of. Won't fit in recycling bin unless you tear it down a lot. Just an extra thing to plan for.

We are very happy we got it, and it holds a lot and just looks great in the garage. Would buy again and we do recommend this white metal wheeled cabinet.