The one-piece sliding doors are pressure-tight, which is especially noticeable when the train passes through a tunnel. However, beyond that, they offer little benefit. On the contrary, every time a train approaches, passengers on the upper deck experience a sudden jolt as the air flap slams loudly at one end of the car—a less-than-ideal solution.

The train’s entrances have sparked considerable debate. Lowering the floor to improve headroom may seem unremarkable, but it has drawn criticism from wheelchair users. While the small threshold created by the extendable platform shouldn’t pose a major obstacle, it remains a concern. Additionally, the handrail in the external staircase has been recessed and ends slightly higher, another point of criticism. However, given the staircase’s narrow design, an alternative layout wasn’t feasible.