Odd. I rented one a while ago (Roadster, 7AT) and I think I'd prefer the hardtop. Visibility really is terrible, the roadster is softer than the coupe, the engine note (especially at high revs) is nothing to write home about and there's way too much tire and wind noise at higher speeds.
Not that it's a bad car, but less noise, better rear visibility, some extra cargo space and a stiffer chassis/suspension is definitely something that car could use. The ventilated seats in the roadster are nice though.