So far, for simple amateur use, it is good. The only negative thing is the difficulty in properly placing the battery.

It works well, just like regular torque wrenches. Familiarity is required until you learn how it operates. It is good to check it with an analog one to make sure it measures correctly!

It is very good and has a wide range from 0.1 nm to 999.9 nm. I don't know if it will withstand up to that point, but the 40 - 350 it mentions is the recommended setting and can be adjusted exactly where you want it. It works very well and is quite high quality. (One small negative is that the battery is somewhat difficult to insert correctly and requires several attempts because if it is moved slightly more intensely, it loses contact and leaves you halfway. You have to remove it and put it back in again, and it can be frustrating at first. However, once it is inserted correctly, it works normally and does not turn off again. It's just a matter of figuring out what's causing the issue, which can be irritating.)