I have had one suit made by PS, and am reasonably happy with it. It is not perfect, but given the price and method, it serves its purpose well. With that as background, a couple thoughts:
1) PS has a policy that the cost of alterations on a suit can be subtracted from the cost of the next purchase (should you choose to buy again). From the posts above, it appears the only issue that a tailor won't be able to fix is the length of the jacket.
2) Many of the critiques noted above were choices that you were able to make for the suit, so I'm not sure holding PS responsible is appropriate (i.e. in the form of a refund demand or re-make). For instance, you choose label width, the style (flap width or no flap at all, slanted pockets or straight, etc) and number of pockets (no ticket pocket, no problem), tailor your jacket length (they still could have messed this up), choose padded or unpadded shoulders, etc. Also, when being measured, did you know your right shoulder is lower? If so, did you mention it and/or were you standing in a way that would make it obvious as it is in the picture?