The Cabota is my first cabbed tractor. I have MANY hours on open station tractors, dating from the 60's on.
My previous tractor was a John Deere 750, lots and lots of hours bush hogging and finish mowing with that. Always wore a pair of muffs and with the hog usually a pair of foam inserts AND muffs.
Might be a frequency sensitivity thing but the hydro whine in the cab is uncomfortable for me at any speed in any range. No biggie tho, I've just gotten in the habit of using the muffs. They hang on the loader lever and go on before the tractor gets started.
This is also my first tractor with mirrors and I really like them. I'm very surprised at how clear the image is (virtually no vibration) and I do just enough over-the-road with it to really appreciate them. I still look over my shoulder while tilling, box blading or snowblowing, but for mowing or maneuvering in close quarters it's nice to be able to just glance at the mirrors.