2PM's concert was indeed not sold out but the management (JYPE) admitted that it was one of the best stops. The reason? From the external factor, fans' queue was neat, they were all in line, and provided security was also good. From the internal factor, the promoter managed to fulfill all requests from the artists' side.
The staff had to visit some supermarkets for 2.5 hours to buy something requested by a certain member, there were quite a lot of sudden requests made by the artists which the staff managed to fulfill, fortunately.
2PM also felt safe in Jakarta, some of the members even asked to slacken the security. They felt really safe until the point where one of the members even went missing from his room in the morning, turned out he went to the lobby for breakfast, with security staff watching him from afar. Yesterday, one of the members (Taecyeon) even refused to take security staff with him when he went to a mall but for the sake of his safety, he was still watched from a distance.
Overall, all the members are kind, they smiled and thanked all staffs at the end of every activity, even the security staffs. Actually, staff are not allowed to speak to the artists unless the artists start the conversation themselves but Taecyeon spoke a lot to the staff, the conversation became easier since there's no language barrier, he was so noisy too lol
The most talkative member and I quoted 'one whom must not be shown a mirror' was Wooyoung, he even made the staff panicked when he out of the blue requested to eat a certain dish before leaving for Korea. The staff went around the airport for it but they could not buy it for Woo in the end because the restaurant that sells it wasn't there at the airport.
The most perfectionist member was Jun. K. Even during the rehearsal, the staff had to change some stage acts as he wished.
The most silent was Nichkhun and Junho. The staff didn't know about Nichkhun but Junho surely looked very tired :(
Out of the members, Wooyoung Chansung and Taecyeon were the most easygoing with the staff. And Wooyoung's English was quite great o/
The staff managed to take a picture with Wooyoung. It was after Wooyoung took a bath after the concert and the staff was standing in front of the dressing room while holding his phone. When Wooyoung was going to enter the dressing room, he saw around as if he was looking for something. Then the staff asked him, "Do you need help?" Wooyoung replied, "Ah no no no" Staff said, "selca" and Wooyoung replied, "yes ofc." In the end, Wooyoung was the one who said thank you, he even patted the staff's shoulder xD
So once again, the management said they're satisfied with the concert ^^