A friend of mine is considering purchasing a folding tricycle. (She has balance issues, so a regular bike isn't an option.) This would be for exercise and fun riding, not for commuting or hauling stuff.
Weight of the trike isn't really a factor, since the trike will make the trip from her first-floor apartment to the car.
A few gears would be nice, but she lives in Florida and the terrain is pretty flat.
She's leery of riding a recumbent, for fears of being less visible to Florida drivers (who are pretty aggressive).
Edit: If she can get the trike into a car, then a recumbent's low profile will be much less of an issue.
Edit: I'm particularly looking for recommendations from anyone who's used one of these.