Good. It does its job. I haven't learned it very well yet and I still can't find it. I have made some shots that succeeded and many that failed. It requires quite a bit of practice.

It has a rating from 1 to 8. I tried it with a 10RI wire (0.10mm thickness) at 6 and it doesn't stick. At 8, where I tried it and it sticks a little, it only has 3=2 with 3 points from full charge. At 7, it only has 4 with 5 attempts. At 6, you can make about 30 attempts. I am waiting for a 0.5cm wire to see if it will stick at 6 or 5. Its battery is 4000mAh. It is relatively weak. It is better to get one that sticks with a thickness of 15 and a battery of 10,000mAh.

I can't bet 0.10mm. I only bet with the sample it had when I bought it, which was 0.05mm, it's not worth it. There may be some more expensive ones, but they bet perfectly up to 0.15mm. Look for them at 8.4v, they do a good job. Someone has it and I saw it in reality, not in a video, perfect betting at 0.15mm

I bought it for my battery-powered tools, some of which are quite old and there are no replacement batteries available. But also as a hobbyist who enjoys fixing various things, it is quite good and convenient due to its size. Here are the first impressions video with a test - https://youtu.be/LG7YBHH_-0Q