In 2015, I went to Montreal and Boston shows both in GA. For Montreal, I was in line at 4 pm. They opened the door at 6 pm. I was close to the main stage and almost on the rail. When U2 played the B-stage (about 5-6 songs), I had almost no view of the band. I did not want to loose my spot and did not move to the B-stage. When the band members were on the cat walk, they were so close (see picture). In Boston, I used a different strategy. I entered the place at 7:15 pm. Just before the show started, I was next to the entrance were Bono entered the arena near Stage B. He walked just in front of me. I then walked near the Main stage as Bono was also walking on the cat walk toward the main stage. It was fantastic. I had a very good view of the main stage when they played the main stage. I moved from the main stage to the B -stage about 1 song before the band moved to the B - stage. I was on the rail for the B-stage songs but with a "rear view" (just behind Larry). At the end of the 5-6 songs on Stage B, they started to play Bad on the B-stage and they walked to the main stage while playing Bad. I was also walking (not on the cat walk ) with them as I moved back to the main stage. This was awesome and one of the best memory ever.. In the end, when I returned to the main stage, I was not close; had a nice view but not close. Overall, I was able to move from one side to another. There is a lot of space. I will try to have the same experience again as I have GA ticket again for Montreal and Boston. Enjoy!