This was a pain to put together! The holes did not match and the directions not very clear. We didn’t use the screws that came with it and used sturdier screws. BUT the end product is AMAZING and LOOKS GREAT!!!  We attached the TV to a swivel wall mount which adds a more sturdy attachment.  The unit is very heavy and definitely need two people to attach it to the wall.  We are happy with the finished product. I just had to promise my husband I would never buy something like this again.  We have a 60” TV on the entertainment center.  Because we used such sturdy screws, if we ever sell our house, this would have to stay attached to the wall for the new buyers.