Very good and because I have the same brand case, I don't need to take it off. It's the second one I'm getting, the other one lasted me 4 years

For the money it's worth it, it may be plastic but it doesn't affect its functionality, as long as you have a 10 watt or 12 watt wall charger to take advantage of the fast charging. I have an iPhone XS and I use it there, it's worth its money

It does not include a wall charger, just so you know. Overall, a fine little machine, it doesn't charge as fast as your charger but it has decent speed for wireless

I give it five stars because it is a good gadget. But... overall slow charging. Every time you leave it for charging, you have to check if you put it correctly. Finally, we all know that when we put our phone for charging, we should leave it until it is completed. With the wireless one, when you put it on, you simply can't handle it until the charging is finished.

Good construction, charging stops as soon as the battery reaches 100%, the phone heats up within reasonable limits

Very good product, high quality, it doesn't slip when you touch it, whether on a glass surface or on wood, etc. Direct connection with the Samsung S8, no need to remove the case to charge. Spigen warranty

Very small in size, with elastic pieces on top and bottom for better grip. With a power supply (not included) you can do fast charging and quick wireless charging.

First experience with a wireless charger (on iPhone X), excellent.
The package includes the charger and a fairly long cable (must be 1.5m). It does not include a wall charger.
The charger is small, discreet, good quality materials. The surface on both sides helps it to sit steadily on the surface where you will place it and to hold the device firmly on it.
Charging speed is excellent, of course I charge it with a 12W charger. Generally, the company recommends a charger above 10W to function properly and quickly.
Overall, I had underestimated this particular technology and although I had devices that supported it, I had not purchased a similar charger. It's difficult for someone who has tried it to go back and deal with cables again.
So, a good and relatively value for money purchase (at 30€) for someone interested in a wireless charger.