Just booked the last one.
So I have
50s Prime Time
and 1900 Park Fare for the last night dinner.
Everything else will be counter service, off site, or at the villa.
The Dine with Shamu reservation will be looked at objectively closer to the time.
The online ADR process is totally painless. And I like the fact that if it didn't have the time I requested it offered alternative times, or my requested time at different restaurants.
Two thumbs up to WDW for that.