There are concerns after large queues at Dublin's Marlay Park following the Hella Mega Tour at the venue on Monday.
This featured rock bands Green Day, Fall Out Boy and Weezer.
While US rockers Guns N' Roses also play Marlay Park on Tuesday.
Jason was there Monday and told Lunchtime Live there seemed to be no real coordination.
"There was part of it that was super-restrictive in terms of the queueing, and then there was another part of it where there didn't seem to be much management about it at all.
"There was lots of young kids and families there, looking for a mini-festival experience, and they were just left in this very, very long queue".
He also says delays in the gates being opened didn't help.
"I arrived about 4.55pm... assuming the gates would have been open for an hour already, and it would have been a lot easier to get in.
"That's obviously part of the problem - that they said they'd open at 4pm and they didn't open at 4pm".
Tayla says she had a similar experience, and also didn't have a way to get home.
"We got there at about 5.30 - maybe 6 o'clock - and we had to walk 25 minutes down the Grange Road to join the back of the queue, to get to the entrance of Marlay Park.
"So it was about 50 minutes queueing in total before we were able to even get through security.
"Getting home afterwards was even worse of a nightmare.... ultimately we ended up having to do a 90 minute walk from Marlay Park to Portobello.
"There were hundreds of us in the same boat.
"The gig ended at about 11.15, and the last bus home was at 11.30 - I don't understand how they expected thousands of people to be able to fit on that one last bus home".
And David from Galway, who has multiple sclerosis, says he is very tired today.
"We got the number 14 bus to Dundrum and that dropped us on the Ballinteer Road, and then we walked down the Grange Road, around the bottom of Marlay Park and then up Whitechurch Road on the other side of Marlay Park to join the queue.
"Lucily a Garda was there... and he said 'You're better off going straight and going to the other entrance' - it was like a bus entrance.
"Basically [we did] a loop of Marlay Park and got into the bus entrance after about an hour and a half.
"I actually have MS as well, so it was a little bit tricky.... I'm wrecked today now after the whole thing".
