Got mine done this morning... I'm about to post a long rant in the TPAS forum. ROFL. Here's what I wrote:
So I selected my FP+ this morning, and can I just say that the interface is horrible?! I did this in 2014 and don't remember it being nearly this frustrating. My main complaint is that it's very frustrating to have to select each FP+ individually (instead of three at a time if you want) and then every time I went back to select another on the same day, you have to choose the day again and reconfirm that you want it to apply to everyone in your party. You would think there would be a way that you could tick a box or something to indicate that you want every single choice to apply to all.
I would love to see them enable selecting all three FP+ on one screen.
I also think they should narrow the FP+ window to half an hour apart. If you want FP+ for two attractions right next to each other, it's perfectly feasible that would be able to make one right after the other, especially since the FP+ window is for an hour. If you wanted to FP+, just as an example, Space Mountain at noon and Buzz at 12:30, that technically gives you til 1:30 to get in line for Buzz.
Also, due to EBKAC error (error between keyboard and chair) I accidentally made FP+ selections for today, then it blocked me for picking them my last day so I had to go all the way back to
MDE dashboard to cancel those. How about enabling canceling from the FP+ selection screen? You can view your plans from that screen, but you can't edit them.
Then there were all the usual Disney IT snafus - when canceling my incorrect FP+, the screen froze and had to be reloaded... the first time I selected November 13th FP+ screen, it showed no FP+ availability at all in any of the parks, but later I was able to select... just... ugh. 7 AM is too dang early to be having to wrestle with the proverbial Disney IT alligator.