I think the hotel is as wheelchair accommodating as most Cuban resorts. It's not to Canadian standards. It helps that they have elevators going to every floor. There is a boardwalk to the beach and beach bar, but then there are a couple of steps to the beach - so I'm not sure if that would work out for you?
It's better than the hotels with the villas because the villas are walk-up only so you'd have to request a ground floor room.
Thanks for the compliments! Our ceremony was at 3pm which is usual for that time of year. I think the sun began to set around 5 so that was the perfect amount of time.
The beach bar isn't anything fancy - it's made of wood and has screens that go down to cut down the drafts if needed. There's a bar, some tables and chairs, and a small dance floor. It's not fancy but there's no way to not have fun there. The guys working the bar are awesome. I don't really have any detailed pictures but here's one at night. During the day they serve hamburgers and fast food here as well.