Boon, are you looking for commercial grade, or home use type mowers? They are two different worlds, if I was in your shoes and could go to a full commercial grade. They are a bit more expensive, but built MUCH MUCH better. Not only are the parts stronger, they are designed to last a whole lot longer. Thats my opinion here....
As for which company I preffer, I would have to say Scag all they way. We currently three different makes/models on my trailers- Scag, Toro, and Gravley. All of my Z's are 48" cut, which works well in this buisness- not to big and not to small. I preffer the Scags over the Toro's any day of the week, even the Gravely's most of the time. The machine just feels much better built, more heavy duty. Both the Gravely's and the Scags decks are built of thicker material (if its rough land this helps), while the Toro feels like its built of sheet metal. Needless to say I am bending those back alot !
I havent heard of this other maker before. I will have to check into them some more to see what the commercial grades look like. Altho I have shopped most of the places within 100 miles of me.
Remember when shopping for these, its like alot of other things- U get what u pay for.
J