So far I have found the following restaurants to be difficult to navigate on an ECV:

Big River Grill, Boardwalk (indoor eating area only; outside eating is much easier to maneuver)

Liberty Tree Tavern, Magic Kingdom (even though they have a separate handicapped entrance, the tables are very close together and difficult to move between)

Grand Floridian Cafe, Grand Floridian Resort & Spa (they will not allow you to use the ECV at the table, but they will allow you to ride it to the table and then have someone else in your party ride it out to the restaurant lobby and park it for the duration of your meal)

Coral Reef, The Seas With Nemo & Friends, EPCOT (because of the tiered seating to see the aquarium, you cannot use your ECV at the table, but they will let you ride to the table and then have someone take it back to the lobby for safe-keeping while eating)

Nanci Wright, Trips The Wright Way, LLC

PS — Please also check out my agency’s other blog on accessibility, www.AccessibleGetaways.com.