Bought this rack for my garage and it's fantastic. I've pressed, squatted and benched out of it so far and it's absolutely rock solid. I haven't lifted heavy in it yet but it's far more solidly built than any rack I've used in a commercial gym. I've added the plate holders to it and they sit at a good height. I added the dip bar attachment and it works well too, with no movement for me at 110kg body weight.
It was pretty easy to put together, everything fit well. The pull-up bar is super thick, but a little bit smooth. I'll probably end up wrapping it with tape to give a better grip.
The only improvement for this I can really think of would be to add some more interesting pull-up handles. If I could do neutral grip pull-ups and wide grip with angled handles then it would be the perfect rack.