I have heard that this machine runs pretty well .
I have never used one.
It is a 2.4 hp and runs on 110 but can have issues if you don't use a 20 amp line.
I like the fact it has a beefier motor and runs balanced.
I think 175 rpm for marble may be too quick.
That is a matter of opinion however.
The Italian machines we use run at around 150 rpm.
Seems to throw the slurry around less.
It is a heavier machine as well.
The guys from VMC seem to be good guys so they may even let you try one out.
I am sure they would give you some references to call and see what their experience is.
I don't know what the pricing is for that machine but probably in the $2000 range.
If your in the market for a machine there are a good selection to look at.
Hawk,Samich and Klindex seem to be the leaders in swing machines.
I am sure there are others as well.