I was in DCA today, and then I hopped over to Disneyland. Due to scheduling conflicts, this was the week I could go, otherwise I might have chosen next week. Truthfully, I didn't think it was horrible, but this is just me.
It was definitely crowded, but I still got on California Screamin', RSR, and Soarin'. Fastpassed Soarin' and Screamin', 60 minutes in singles for RSR (yikes). At DL, I did Hyperspace Mountain at the end of the night, as well as Matterhorn twice through the singles line. In between, I did a bunch of other rides.
For those checking the app, some of the wait times are being exagerrated. Yesterday, PofTC was posted as 50 minutes. It was more like 20. Same thing happened today. Luigi's was posted as 50 and was really 30. Most striking example was Space Mountain. Posted at 95 minutes. Actual time: 20 minutes. It was the end of the night, but you see my point. I saw an earlier poster who said that no FPs were available. I got my FP for Soarin' right away, and then later for Screamin'. I noticed there were FPs for certain attractions still available, namely Sky School, Screamin', and Astro Blasters, very late in the day.
I was in Epcot last year over a holiday weekend. It. Was. Horrible. We were basically able to ride what we had FPs for. The boat ride in Mexico was a 60 minute wait. Just my opinion, but here, it's kind of a functional crowd. It's messy, but you can still do a good bit. Keeping it open until midnight was also helpful.
Disclaimer: I've been here four times before and WDW WAY more, so I'm not an inexperienced theme park goer. I can definitely see how it could be overwhelming if you don't know what you're doing.