A number of us have been impressed with Sonarworks. The thing is I'm not sure what headphones you have at this point to try it with. Presently it also supports a limited number. For instance, only the LCD-2 and LCD-X from Audeze, and 400i and 560 from Hifiman. I can tell you that with the LCD-X you'll definitely get an improvement in upper midrange and lower treble. Vocals will be clearer and brought more in line.
I'm not talking about refinement here. I'm talking about your expensive headphones not sounding kind of like crap. I'm well aware of how the LCD-X feels. I have a recently produced one with the new headband. It doesn't feel that heavy. The issue for me is that the metal piece of the headband is very close to the leather one or whatever it's made from and I get pressure/some pain on the top of my head. Otherwise, despite its weight, the headphone is fairly comfortable. The issue is related to its weight but some think they just aren't nailing the headband. If not with a computer I'm not sure when you'd be using headphones. But yes, with Sonarworks you'd need a computer although they're starting to support mobile devices, and I've actually taken the LCD-X on almost two-hour walks.