It was rough and high.
Even with the rough idle there was no CEL, which was strange. So, since I had everything out, I replaced the spark plugs, IAC and throttle position sensor. I didn't replace the EGR or PCV. The PCV was only cleaned and EGR has new gasket and o-ring to the intake.
Long time ago I had slightly rough and high idle where car would speed up too easily at idle. Root cause was very short trips and non top tier gas for a few years had left deposits on throttle body.
But bigger consequence of short trips / non top tier fuel over time was low power due to gummed up injectors and maybe even deposits in combustion chamber. Car felt pretty normal but would not go over 75mph. Also poorer fuel economy.
Cleaning the throttle body (on both sides) fixed rough idle. A fuel injector cleaner in the gas tank began to give power improvement and I followed that up with the Regane complete fuel system cleaner (fuel system cleaners have much more of the cleaning chemical - PEA - than fuel injector cleaners). The improvement was huge. I could then hear some sort of scraping noise on acceleration so I did the $20 fuel system cleaning at Walmart where they drip in a cleaner through a vacuum hose. That actually took care of that noise.
Since then, it's been a case of almost always using top tier fuel, making sure there were longer trips mixed in, and a complete fuel system cleaner every 5k to 10k (which now does not really seem to do much thanks to top tier fuel and longer trips). I haven't had to clean the throttle body since. I also only use full synthetic oil.
If the throttle body was dirty, then I think it is definitely worth running a complete fuel system cleaner and consider an intake system cleaner either diy or walmart. Those same deposits on the throttle body would have also deposited themselves elsewhere. And since you've only got 76k miles on a nearly 20 year old car, it's probably done a lot of short tripping. If you're in a cold climate, it's the worst possible scenario for deposits since it takes even longer to get fully warmed up, but short trips in California was enough for mine to have problems after a couple of years.
Lastly, (on the Duratec at least), the instructions say once you remove the PCV valve, you have to replace it. The act of removing it supposedly means it won't work properly.