The first one lasted 10 minutes, I'm going to exchange it with another one unfortunately it's not a good brand. As for the second one, I put the pump on it but I didn't have time to inflate it to the desired pressure, it started leaking. Money wasted

I bought 2.
The first one burst on its own with water and a little detol (without chlorine), without seeing exactly what happened after the 10th use.
The second one burst again on its own with water and 10 drops of dish liquid after the 3rd use.

And in both cases, the plastic broke at the bottom when it burst.
The product was delivered to me without packaging, without instructions for use. It only had wrapping from the courier.
Such a waste of money and waiting.
The nozzle does spray satisfactorily.
However, the plastic bottle cannot withstand anything other than water, which is not stated anywhere, because it has no indications or contraindications

I got it for disinfection in the summer on a balcony, but I didn't have the chance to use it, so I have it and I water the plants. VFM, I would say it does a good job for its price. THE PLANTS I WATER, AS LONG AS IT IS FULL FROM THE MIDDLE AND ABOVE, IT'S FINE. WHEN IT GETS EMPTY AND IF YOU TILT IT, THE PLASTIC TUBE, WHICH IS RELATIVELY SHORT, DOESN'T REACH TO DRAW WATER ALWAYS. THE FLOW ADJUSTMENT DOESN'T HAVE MUCH FLEXIBILITY, ALL THE WAY TO THE LEFT IT SPRAYS CONICALLY, WHICH IS GOOD FOR DISINFECTION AND WATERING IN POTS, AND AS SOON AS YOU TURN IT A LITTLE TO THE RIGHT (THE NOZZLE), IT SPRAYS WITH STRAIGHT PRESSURE OF FLOW, AND I WOULD SAY IT GETS STRONGER THE MORE TO THE RIGHT, SO IT'S GOOD FOR MANY USES.

Very sturdy construction, plastic bottle with sufficient thickness, not like some cheap ones that tear if you press them on the ground and find a small stone. Convenient front nozzle to twist it wherever it suits you

I would say that the top characteristic of this product is the nozzle that changes from straight flow (like a hose) to conical, but also has tilt (up-down-right-left), so in combination with the very good pressure, you can spray wherever you aim without having to maneuver with the hand holding the sprayer!
As for the negatives, I would mention the position of the button, which I often pressed when lowering the plunger during inflation.
Unfortunately, in a short period of time, it cracked at the base (without falling, I don't know how it happened) and I couldn't seal the crack, from which liquid only leaked when the pressure increased.