Very good!!! Fast to inflate and without any hassle, very fast to deflate!!! The only thing I did during deflation (we have a sup 10'6") was to fold it as it was deflating...

Minus one star because if you want to inflate at the beach, be very careful not to let it fall in the sand and water. Minus another one for the START STOP button, which can easily be pressed inside the carrying bag. Other than that, it does exactly what it says and more, inflates and deflates 2 SUPs and more. Note, the car charging cable is not detachable.

It is expensive but it is literally worth the money
It inflates and deflates the HOMETHLON MYKONOS (at 15psi) 2 times without intermediate charging!!!
Time: 10 minutes

The most useful thing to prevent your tongue from getting tired while inflating a sup. It inflates to 15psi in 12 minutes and deflates in 5. It makes noise but it's worth it

I didn't use it many times this year, but every time I needed it (connecting it to a Citroen C3), it did a very good job inflating to 18psi in about 12 minutes. I found it important that it has a digital pressure gauge (target and current pressure while inflating).

The product does exactly what the company's description says. The inflation time of a large SAP is about 10 to 12 minutes with the detail that when it reaches the last bars, the sound of the pump changes, which is slightly louder and a bit more difficult due to approaching maximum inflation. Very satisfied with the product so far.

The only reason I give 4 stars is because it burns the fuse of the car's ignition as soon as it turns on. However, it works perfectly fine on older cars. I solved the problem by buying an adapter with clamps for the battery terminals. As soon as the problem occurred, I sent an email to the manufacturer and within a few minutes, I received a very informative response to any questions I had. In addition, the Zray 3-meter SUP inflates in about 6-7 minutes at maximum pressure! Very powerful!