Skroutz.eu

For its price (50 euros including shipping costs), I can describe it as value for money. It has a sturdy construction and holding it, you feel safe working with it. I consider it somewhat bulky for its voltage. Apart from that, it is also somewhat heavy for a 12v tool with a 1.5AH battery. I have drilled and screwed into wood and iron (not solid) and it performed satisfactorily for amateur use. Its battery drained relatively quickly, but this is logical because it was the first use after purchase and the battery needs to be charged/discharged several times in order to reach its proper levels. In conclusion, it is worth having.

Amateur use only. With the appropriate blades, it works wonders. Sturdy construction and has nothing to envy from big and famous brands. Recommended.

It was received a week ago and tested for detecting household wiring and underwater counter plasterboard that was installed behind drywall. I haven't tried anything for metal detection yet, but if I do, I will come back.
As another user mentioned below, it is good to make 1-2 passes over the area you are interested in, to make sure and center it correctly (it will center, don't worry). From there, depending on the material it detects, calculate the margin you need to leave and drill.
I give it one minus star because the sound of the alarm during cable detection is low (you need to have some quiet in the room you are in) and I didn't like it very much, despite the fact that I also have an indication on the screen. I would like to be able to adjust the volume of the sound. Otherwise, a purchase for amateurs (like myself) that is worth its money.
Cost (including shipping) is around €32.

It is perfect for household tasks. It is worth more than its price. I have used it extensively and have no complaints. I have used both the diamond drills from the same company and others, and the machine works great with all of them. Overall, a very reliable tool.