I have found no problems with me. The picture is the same with and without adapter with me - at least as far as I can tell. The signal strength is in all channels with and without an adapter at 99%. Well, I think the length, because my cable TV jack is not flush with the veneer 2-3mm but behind lies. From Photo forth then the Oehlbach-angle adapter would possibly too short - but that's just speculation. This one of ViaBlue fit perfectly and affect the signal for me so little (if any) that I can not notice any problems. From me a strong buy recommendation! However, it would be desirable if there were, the adapter also individually, because now I have a spare.