My DD16 and I did this yesterday.
We have watched the parade many,many times so parade viewing wasn't a priority, but I agree, if it's the first time you are watching or you won't have another chance to watch from street level, don't do this.
I love characters, and Tiana is my favorite princess. We arrrived at 2:30pm and checked in, they opened the dock at 2:47pm, they were waiting on the cooler that brought the scooped ice cream. No probllem grabbing a table, had the chocolate ice cream, raspberry sorbet and the dessert trio. All very good, loved the sorbet. Tiana and Naveen arrived right around 2:50am and th eline stayed maybe only 2 groups deep. A lot of people were just concentrating on eating. I decided not to meet them here but waited for the boat pic.
Around 3:10 we boarded the boat, Tiana and Naveen stayed on the dock all by themselves, so my DD grabbed some pics from the boat.
Soon they left and we got positioned for the parade viewing. In all honesty: you cannot compare the pictures you have seen from the dock with real life human eyes, my DD took a pic I told her not to zoom in, and you can see it a lot better through your eyes.
A CM came around offering popcorn, pretzels, apple slices, cotton candy and bottled/can drinks. I have read that they basically came around a lot of times and was prepared with an empty bag to put the packed goodies in, I can tell you that my extended family are getting prepacked popcorn along with heir Christmas gifts today

Also photopass cm came over and took a couple of pic of my DD and I, including the magic shot with the frog kiss
The parade ended and we went back to the dock, Tiana and Naveen joined shortly and we were off, nice surprise they didn't play the regular boat spiel but played jazz music all thee time. T & N went to all three decks, stopping along the way for pictures. They both were amazing, kept dancing and talking too everyone, they waved at the people on BTMR and I'm sure that was an awesome surprise for the riders.
Like I said before, this was a treat for myself and DD, basically my Christmas gift to myself, I enjoyed it a lot/
these were the ones when we were on the boat and T&N were still on the dock
My DD was convinced they were a real couple, so I guess they sold it right
zoomed from the boat
not zoomed, it seriously doesn't look this far away
T & N rejoin us