I’m a pretty big fan of Roman shades. There are some aesthetic reasons as well as some practical reasons.
Aestheticaly, I find that they’re a very curvy blind. Whereas most blinds use parallel lines make them look good, Roman shades flow in an undulating, wave-like manner. They can really work to soften up a room without being as dominant as floor length drapes. That point is really driven home with designer Roman shades that have a great swoop as a defining characteristic.
As mentioned before though, it’s not just about aesthetics. Many types of blinds leave cracks for light to get through. I’m always challenged when it comes to sleep so something like a Roman shade offers 100% coverage, allowing someone who’s bothered by light streaming through cracks to sleep with ease