Since we're swapping stories, here's how it went for me.
Was logged in to
DCL, but not in my reservation yet. Had all the data filled out, just didn't hit Submit. Once everyone started bailing in chat and the magic hour hit, I clicked the button. Got right in.
Went to book Palo. I don't remember whether I choose dinner or brunch at that time. But when I looked at who I could book a table for, I saw that what I had heard was true. Since I'm linked with Chris (GrandmaX3) I could book for all of us. I knew that Chris was trying for a dolphin excursion for her grandson, so I canceled out of the ressie. I didn't want her to miss out on booking that. I was only trying for Palo and Stingrays at CC for myself. And I wouldn't be heartbroken if I didn't get it.
So I'm watching chat and all the frustration. Then Chris calls me about 9:20 PST, she's getting hung up on DCL and can't get in. I logged back into the ressie and it's a little slow, but I get in. Went straight to Shore Excursions and got Matt booked for the dolphins.

Since it seemed to be fairly painless for me, I continued booking for us. Chris had a few other excursions she wanted for her family, in particular a back up for Cartagena. Got us all booked on the Walking Tour. Tried to book something in PV for Chris, but it conflicted with the dolpins. It was just a back up tour, so no worries.
Now on to Palo. This is where I started hitting glitches. Got dinner booked for the night Chris wanted and added my name just in case. I'm really trying for the private room for the solo travelers, but if that falls through and I can join Chris and family. Next up tried to book brunch, had a time and everything, but when I submitted on the confirmation page, I got booted out. Was able to get back in the ressie with no problem though. Tried for Palo again, this time brunch was all gone, but there were tea slots open. So I booked at a table for 4. I'm the only one out of the group doing tea, but decided to book a table for 4 just to have it and we can use it as one of the tables for the wench tea.
With all of Chris's wishes taken care of, I went back to Shore Excursions to see if any Stingray times were left. This is one thing DS asked for. These times slots were wide open. I went with 12pm so that we would have time to get the group pirate picture done. I may move this to 11am because I think we'll be out of costume by then. Still contemplating.
Tried to book a Cabana Massage. Even though it didn't show sold out on the main page, once I clicked on it I got an error saying there was nothing available. I'm doing a massage in PV so this is no big deal. I really shouldn't spend the extra money anyway and my CC day is going to be so full. Really just wanted to have a time slot just in case.
Checked back on brunch a few times. All of the sudden it shows open. I clicked the button, swithced back to Chat to let others know it opened up. Switched back to DCL, selected a table and time, clicked Submit and got booted out of the ressie again.

Seemed every time I thought I was getting a brunch, I got the boot. Looked back in chat and a few were able to get it.....someone owes me a brunch!!! Just kidding. All of my Palo dinning times were going to be with groups. If that falls through, I'll be ok. There's plenty of food on board the ship, I won't starve if I don't get to Palo.
All in all, the site was slow, but not impossible. I really expected more problems, but it wasn't too bad for me.