We were there opening weekend--9/27-9/29. I thought the crowds were very heavy, and it was difficult to get to the rides. DH and DD were among the first 100 in for Rhino Rally on Sunday am and waited over 45 minutes to ride. The lines at entry were horrendous--they didn't open the gates one minute prior to opening time, so we spent the first 30 minutes getting into the park, and through security. There was no traffic control, so it took us 1 hour and 20 minutes to get from the closing gate to our hotel--which was only 1/2 mile away (the Baymont--not recommended). The worst part was Saturday night for those going to Howl-o=scream. The traffic was backed up over 4 miles on Busch Blvd. to get in at 7:00. When we returned to the hotel at 9:15 traffic was still backed up for miles on Busch Blvd. and at least one mile on 30th Avenue. it was a mess.