A friend had one for years, yes they are better than just cable. In terms
of power and feel, this said few years back he upgraded to full hydraulic
and definitely improvement.
They are quite expensive for what they are.
Can also get cable disks with twin pistons which again are touch better
than the standard single piston disk.
Essentially as hydraulic moves down the food chain, very little reason for
cable disks. And even less technical improvements.
My Gravel bike came with sora and cable disks I went though a few brakes as
the mechanism got trashed by the mud and what not, and tried twin pots
which where better in terms of power.
I did toy with cable operated but in the end getting shifters brakes plus
new cassette and rear mech, was though not cheap was worth the cost vs
performance.
I mainly got improved braking and a sealed system that like the MTB needs
the pads changed and the dead sheep washed out of it bar that it’s happy to
be left alone for most part.
I did also get a slightly wider gear range but it was mainly the braking.
For yourself I suspect your likely to be less MTB type use and bog
snorkelling.
This said only real advance cable activated has is feel/power so I’d see
how it feels stock first and once bedded in etc.
Roger Merriman.