Exceed my expectations, its a really well made filter holder and set of filters and very easy to handle.
10/10

Love the rapid release frame and the secure fit of the CPL, along with the easy rotation. No evidence of colour cast when stacking filters. Carry case is good quality also.

The system with the CPL filter mount beats everything I've used before. Attaching the holder is also easy. The quality of the filters themselves leaves nothing to be desired. This makes filter photography simply fun!

I have mounted the kit on a lens with the 72 mm ring and it fits perfectly. It is easy to assemble and its handling is very simple, it does not require reading the instructions (I would say that it is better not to read them) just looking at the illustrations is enough. As for the quality of the product it seems to be made with good materials and the finish is excellent; the polarizing filter holder is very effective, if you place the filter well and carefully you do not touch it at all. There are two compartments for the square filters that I hope to get some use out of, I am happy.
As for the optical quality of the filters I cannot comment as I have not used them yet

very easy to use

I tried it and wasn't disappointed, easy to use but was too big to carry around for my type of photography unless you use only one lens, but it's too much headache when you keep switching lenses.

So i returned it and went with the magnetic filter from same brand which is perfect for me.

The filter does what it should, it extends the exposure time. A Vignettietierung or wrong color reproduction I could not determine so far. The packaging of the filters is very good and practical, some higher-priced filters can not do so well.

I was really looking forward to it, everything is packaged beautifully and with high quality, so you can't say anything really great

For a while I had hesitated between several brands to choose a filter holder for ND and GND filters. I used a flash sale to purchase this kit. I'm not disappointed.
The set is sturdy and easy to store.
The rather pretty body has 5 compartments, 3 of which are raised via a ribbon for square ND filters. There is a belt loop and a belt loop on the back of the case. I would have liked a slightly roomier compartment to house the adapter rings with the CPL filter when that is removed.
The assembly (or disassembly) of the elements is well explained with instructions in several languages, including French.

Main positive points:
No dominant color, no loss of sharpness in the first tests performed.
The plastic frame with its tabs for handling ND filters.
The system for installing the SPS filter on the filter holder.
the knurled knob for mounting the adapter ring and rotating locks the filter holder.
The easily accessible wheel for controlling the polarizing filter.
The stable hold of the square filter on the filter holder.
The robustness of the metal filter holder.

If you must find some negative points: hold
the square filter in the filter holder a little too tightly.
The click is too loud to lock the CPL filter in the filter holder.
No bag to independently protect the CPL filter in the housing.
No protective cover for the CPL when the set is installed on the lens.

The system with the CPL filter assembly beats everything I have used so far. Putting on the bracket is also easy to do. The quality of the filters themselves leaves nothing to be desired. This is how filter photography is just fun!