I must've been there the same time. I at Universal on Monday 4/18. We didn't know about getting the timed entry tickets until we goto to the WWoHP entry point. Then we had to walk back about 10 minutes to get them. The tickets were for 3 hours later. 2pm >> 5pm. Or the standby line. We did stand by line, which was an unshaded line in a back lot area, backs of buildings chain fences for scenery and 0 shade. It was hot on the 18th for NYers. We probably got into WWoHP about 45 minutes of being on standby. WWoHP was beyond packed. It was like being in New Orleans on Mardi Gras. Took about a half hour to get 4 butter bears for our group. We left area after that, frustrated. Why have time entry if the whole area is overfull?
To sum up, I would never do again during a peak season, or wait so long to get over there. The group had 2 babies so we were hanging out in Seuss land.