Not very comfortable, and adjustments leave much to be desired. The 2-mag offside pouch is overkill and harder to conceal than a single would be. If you need more than one mag you're already in over your head anyway. Tie-down straps are cheap and not very adjustable nor effective. I also have an Uncle Mikes Pro pak system and it's more comfortable, and a lot cheaper, albeit more cheaply constructed.
Cons: rather cheaply made and difficult to adjust easily
This review was written in the old system and had content requirements that are different than reviews written today.