Been here for a week.... I don't hate it quite as much as I thought I would,but I dislike it. My number one reason? The website is SO GLITCHY. Due to the ridiculous amount of preplanning,the detail of names,etc,and ticket usage,leaves almost NO room for adjusting as you go.

yesterday was a prime example, we had a few fp+ for the afternoon!and partway thru the day decided to change our schedule-attempting to log in via the app was a joke, it kept going offline randomly,and when I would get it back the info kept changing....

so end result was we list our midday fp+ choices (site dropped us then lost our plans) and we finally gave up,and just did our own thing. For us,we managed fine,but were wdw vets, for the average or new visitor,it would have been so 'not fun'. Another MASSIVE drawback is the inability of the system to recognize unused ticket days left- we ended up skipping a park day midweek,and will use that day at the end of trip,however we can't make fp+ b/c our days are already "used up"

so it's an awful thing IMHO- I enjoyed the freedom of visiting Universal for a couple of days....just us,some tickets,and plenty of fun!(disney seriously is underestimating its competition)
So overall,it's mostly doable,but I dislike it a lot.