Assembly is easy for someone with experience in similar construction. Otherwise, ask for help from someone knowledgeable. It is by no means IKEA.
As for the quality of construction, it's fine, but it would be good to replace the backs with 8 mm melamine.
The countertop is beige and not a marble shade as it appears in the first photo.
For the money, it's a nice little kitchen.

Very detailed instructions and very easy assembly.
I use it in a professional space and I am very satisfied.
Definitely very good for the price.

The set for its money is value for money and worth every penny.
The 3 stars are
A) for the assembly instructions which are lacking and if you have no idea about furniture, you will never figure it out, especially for the part with the drawer and hanging.
B) For the thin cardboard backs of the counter and cabinets that will swell over time due to moisture and use, and I will simply replace them cheaply with two pieces of melamine.
Kitchen furniture needs a back made of a regular piece like the rest of the furniture.

I repeat, for the price, it is great and much better than more expensive furniture.
I would buy it again