I am also currently looking at this power rack .
Only reason for me to choose this over the MMPR is the dip arms look like a better setup than the standard MMPR plus the PR1002 dips could be done inside the rack which I think would be more stable on a rack that weighs less than 100kg.
Ideally I would go for the HPSRP Commercial rack with the PR1002 dips arms if they where suitable for that rack . Only thing stopping me from pulling the trigger on the HPSRP rack is Im a beginner and dont know if its just to much gear plus in a rental and if I have to move it I could run into trouble otherwise the Pro's outweigh the Cons for the HPSRP for me.