I owned a Stubby S500 and bought the Robust 25 x 28
I have had the Robust for over five months and sold a small Stubby, the S500, in order to get it. Only recently did I have a reason to use the vacuum system that Brent provides with the Robust. It is very similar to the Oneway vacuum system and now I am getting the best vacuum I have ever gotten on a lathe with it. The secret is to use pipe dope (compound) on the nipple and to use the thread tape when you screw it in the threads that are on the outboard side. There can not be a better vacuum system for a lathe out there. The S500 did not have a vacuum port.
The Clays, who own Oneway, have a fine reputation for standing by their product. Brent English, who owns and makes the Robusts, is just as honorable and is as helpful as he can be. He chose to honor a deal we made after I was unable to keep my half of the bargain - due to a heart attack. So, not only is the Robust made in America, it is an outstanding lathe supported by an excellent company. I also own a Oneway 1018 - and I am as pleased with it as I am with the Robust, but for different reasons. So please do not interpret my comments as being negative towards Oneway, I think highly of them too.
As one who has had elbow problems, I really like the TiltAway feature for the tailstock on the Robust. It is the best available for securing the tailstock out of the way, and it can be rotated forward as well as back, so that the lefties who like to go to the back side of the lathe can still have the tailstock out of the way.
No matter what lathe you have, if a large piece is mounted out of balance the lathe will walk when the speed is increased beyond a reasonable level. I need to add weight to minimize this, but that is independent of the lathe. They all need the weight.
As far as the footprint is concerned, the Robust is a little bigger than the Stubby 750, especially with the Tilt-Away. But the Stubby is somewhat cramped and I find the freedom of movement around the Robust to be an improvement.
If I was back at the decision point again, what would I do differently? Simple, I would order the Robust 25 x 28 sooner. My second choice was the Vicmarc VL300, and it was a coin toss for third between the Oneway 2436 and the Stubby S750 or S1000.
This is just the humble opinion of a happy Robust owner.
Addendum: I will re-issue my invitation to test drive the Robust in my shop if you are serious about purchasing a Robust. I am near Smith Mountain Lake and Roanoke in Southwest Virginia.