Myself, I like the idea of the Falcon arriving at sunset. I think that because that has always been how it was, it will feel very strange for me to adapt to sunrise instead. It is not only a change in the visuals in this case, but a change to the actual timing of events. For some reason, I just like the lighting and the mood. Of course, it would have helped if Lucas had done a better job with the timeline in the first place. You would think that if they spent the night, we would have been treated to at least one nice night shot of Bespin.
I also like the original reveal shot of Bespin. I agree that seeing it so small and far away helps to emphasize its actual size as they get closer.