All ok!
Tested all 20 chips by reading fuse bits and 4 came not responding (error reading fuses). So chance that chip will work is 80%. That is only for reading fuses, haven't done more in-depth test. Chip cost was 0.52 Eu, but including only working it risen to 0.725 Eu. Over all it's decent ratio, but could be better :) Don't be afraid to buy, but know what I have said ;) P.S. In photos, 4 bottom chips are not working ones.