Absolutely! Maybe the fact that the M6060 is gear drive and is way more tractor than the MX6000 has me twisted around on this, but I would honestly prefer it if the MX were geared with an hydraulic shuttle. I'd feel that way whether it's 1 acre or 1,000 acres that I'm working on. That's just my opinion based on around 800 hours on an HST and 100 hours on a gear drive.
Dad's big Kioti was a shuttle. 100HP or thereabouts. It was fine to drive, you just had to pick the right gear from the many available so that you could run the speed you wanted at the revs you wanted. For bush hogging a field (we'd call it topping a paddock here in NZ) it works well, but to me less intuitive than an HST. You have to pick a speed and stick to it, if you run into a bumpy patch you can't slow down, that means the implement will also slow down. On an HST the revs stay the same, you ease up on the pedal and you go slower. I really like separating implement speed from ground speed without having to constantly change gear.
Yes, for loader work you can work the shuttle. But you also have to go on and off the clutch to creep (even though he had a creeper gear in it), and for a more inexperienced operator (i.e. me) it's a lot harder to sneak up on something, you feel like you're constantly riding the clutch, and the clutch in one of those isn't light.
Horses for courses. It's not like you can get a 100HP Kioti with an HST. And it pulled a really big mower, and did what it was supposed to do. But if I was buying in a size where I had choice (or a size where most of the available machines already came with HST), I'd get an HST in a flash.