For its price, it is a great little tool. What I didn't like was that the battery cover popped off and I lost it and the battery in the first week of using it. Luckily it came with another battery so I used some plastic and tape to 'repair' it.
Also the Internal Diameter (ID) measuring bit was not correct, had to file that or it would read 2mm above the Outer Diameter (OD) measure.

What can I say, it does its job for someone who doesn't care about perfect accuracy but I can see myself switching to something better in the future.

Very poor alignment, as shown in the photos. For a tool whose job is to measure with an accuracy of a tenth of a millimeter, this is unacceptable, it makes it essentially useless...

It is not the most poetic construction, but it does its job just fine and the accuracy in measurements is quite satisfactory.

Functional but constantly loses in digital measurement, it gives different results even with zeroing

I bought it defective but I'm not returning it because it costs less than 10 euros. The digital numbers are not stable, they jump to the previous and next number. You reset it completely closed, you open it, close it immediately and it's no longer zero.

After a few measurements that were not stable because it's a gamble... it gave up. Many times it would turn on while in the case and the battery would work unnecessarily.