I tried the Roon presets with the various Audeze headphones I had. They typically fell in range with my liking. Of course you can also accomplish quite a bit with DSP and EQ yourself as well.
The LCD-4 is a great set. Some say they are a bit laid back and even more so than the LCD-3 but I personally did not find that to be the case. I thought they offered just a bit more neutrality over the very sweet sounding LCD-3.
Make sure to audition with a variety of amps because Audeze headphones and their performance can vary quite a bit amp depending.
Also take a look here. They will sound quite a bit different than LCD XC closed set.
There is a curve comparison chart where you can see the difference you can expect.
https://diyaudioheaven.wordpress.com.../audeze/lcd-4/