I had a pair of crappy overhang tickets, row 15 of section 107 for the first night in Chicago via the Red Hill presale. Here's my story:
After reading the posts about bad sound and view (although I'm not sure the view will be bad for this set up), I decided to call Ticketmaster Monday night, the night before tickets went on sale to the general public to see if I could exchange my tickets. After about 5 minutes on hold (which was after 5 minutes of answering automated prompts), the first representative I talked to said my tickets could not be exchanged, so I asked if there was someone else I could speak with and my call was escalated. The second person I talked to said they would have to get authorization from the venue to allow an exchange and they would call me back with the results of that request. I said fine. A couple of hours later I got a call. The person said the tickets could be exchanged but this would have to be done after tickets went on sale to the general public the following morning.
The next morning I called Ticketmaster, 10 minutes before tickets went on sale to the general public to allow for answering the prompts and waiting on hold. I reached an actual person about 10:05 am, 5 minutes after tickets went on sale. I told her I wanted to exchange my tickets and relayed my experience from the night before. She said I could exchange the tickets and checked what was available. By that time only single seats in the 400 level were available. So I thanked her and said I'd take my chances with talking with someone at Soldier Field and getting moved the night of the concert.
Then a day or so later a second night night was added for Chicago. I was on my computer on Wednesday evening, the day the Red Hill Group presale started for the added second show. On a lark I thought I'd check Ticketmaster. I was not eligible for the Red Hill presale for the second show because in addition to the 2 tickets I had for the first Chicago show, I had also bought 2 GA tickets for the Cleveland show so my allotment of tickets for my presale code had been used up. But what the heck, I liked poking around on the site. I found that in addition to the Red Hill presale, there was a Bears Club presale going on. I clicked on it and was prompted for the password. I guessed "TOUCHDOWN" and bingo, I was in. I tried to request 2 Red Zone tickets, no luck. I tried 2 100 level tickets. What came up was similar to the tickets I already had for the night before, under the overhang. I tried 2 200 level tickets and Shazam!!, row 1 of section 234. I had similar seats for the 360 tour and liked the seats. I went ahead and purchased the tickets thinking I'd see if I could get a refund for the first night's crappy seats. Worse case I'd either go to both nights or sell the second night's tickets since they were physical tickets (the first night were credit card entry) and try to get relocated from the crappy seats.
So I immediately called Ticketmaster. I explained to the rep that I would like to see if I could get a refund for the first night's crappy seats. I also relayed my story, that I had called earlier in the week as I had been told to do to see if i could get the seats exchanged with no luck. She said she'd have to get authorization for the refund from the venue. I had expected this and told her that was fine. She said she had to fill out a form. I made sure she relayed my entire story, especially that I had tried to get the seats exchanged and that I had bought tickets for the second night.
I got an email today from Ticketmaster telling me my refund was approved. So, no crappy seats and front row of the 200 level for night 2!
So it pays to at least try to get things settled with Ticketmaster. I was never abusive with anyone I talked to. I explained calmly my situation and my reason for wanting an exchange and eventually a refund. I did ask to have my call escalated when I did not get the response I was seeking. I found everyone I talked to at Ticketmaster helpful and they wanted to be accommodating.
I had bad seats at the United Center for the IE tour and went to the box office to see if I could be moved. They moved me from $90 seats behind the stage and a tree truck of cables, to $270 tickets, literally 2 rows in front of George Lucas, 8 rows off the floor, 20 feet back from the front of the stage: http://zootopia.u2.com/topic/31572-limited-view-seats-advice/