Update from my trip this week:
We used Uber Eats to order from Kosher Grill and Krembo to WDW and it worked very well.
What I like about Uber Eats is that you have transparency on where the driver is, and can estimate to the minute when they’ll arrive. This is advantageous if you’re on a tight timeline. You can also pay a few dollars extra for priority delivery which is recommended as these 2 restaurants are relatively far from WDW.
On arrival day, we were at DHS in the afternoon and had a tight window for dinner. We ordered baguette sandwiches from Kosher Grill via Uber Eats and had them deliver to bus gate 54 (that’s the current rideshare gate, but that could change in future). I placed my order while in line for RotR, delivery estimate was 65-80 mins but actually ended up coming in 50 mins. Because I had up to the minute delivery updates, I was able to time it and arrive at the rideshare bus gate almost exactly on schedule. At that hour there were very few vehicles or people there, so an easy pickup. They have benches there with umbrellas too, so that’s where we ate. One catch - the default DHS location in Uber Eats is too far from the bus gates for you drop the pin in the correct place. We used the “DHS bus gate” location, which worked.
^rideshare section of the DHS bus gates. Uber Eats delivered here, then we sat on the bench a little ways behind me to eat.