I'm not a fan of the idea. I had an air suspension system on an Audi Allroad and have one currently on my Range Rover. In both cases, the systems were installed to enable large ride height changes for offroad travel. This is not something someone would do with a coupe. Indeed, I would think the system would be something you would mess with for the first year it was installed, and after that you would leave the ride height alone.
The automatic ride height decrease at speeds above 70mph in the Allroad was cool, but I had to replace two air bags in three and a half years of ownership from new. I've not replaced air bags in the Range Rover, but the prior owner did two of them and I have had to replace the compressor and several lines. My view is that these systems are more expensive, not as reliable as mechanical ones and enable capabilities that will rarely be used.