I just returned home from the 12/5 - 12/10 Enchantment cruise!! I was a first timer and my g/f's second cruise (first was on carnival) We had a Junior Suite 7666 on the Aft corner.
Getting on the ship was a breeze - we took a Taxi from Lauderdale airport for about $10 and 10 minutes drive time. We too ignored our official time to embark (2:00pm) and arrived around 11:45am. Having a JS and filling out the online forms is an advantage we avoided a line of 100-200 people, couldn't tell because the line disappeared around a corner. An attendant came around and asked if anyone had JS - if you did you stepped out of line and went upstairs to get your seapass card and give your credit card for onboard charges. We were on the ship by 12:15.
The Windjammer was packed for the first meal and I was freaked out by the number of people wondering around bumping you, etc.. thankfully that subsided as people learned the routine. Tables were never that hard to find and all along the walls they have kind of a bar stool set up and a small ledge where you can eat and look out of the windows.