I have a 2011 Kawasaki Mule. When I was looking, it came down to Kubota or Kawasaki. I liked the features and ride of the Kawasaki better, but it was splitting hairs. Kawasaki also had better financing, where Kubota wanted me to pay for insurance on the loan, along with the loan payments. I put $2 grand down and paid off a 6 year loan in two years. I like to do that because there is no pressure to make bigger payments, but easy to do when I have the extra cash.
I do not own or know of anybody that has a Massimo. I would be very hesitant to be an off brand that did not have a good source of parts or dealer support. I've had a few issues with my Kawasaki, and they where all handled under warrantee by Kawasaki. The main issue was in a carbon build up on a smog sensor. First time they cleaned it up and it worked great. But then it happened again and even though I was past my warrantee time, Kawasaki admitted that it was a design flaw and they replaced it with a newer design that solved the problem without costing me a dime.
I've broke things on it, and there are tons of sources for parts. I recently replaced my fuel pump. Kawasaki wants $700 for the pump, but since there are so many of them out there, I found an aftermarket fuel pump on Amazon for $170 that is working great.
What happens in ten years if you need a fuel pump for a Massimo? Will you find it, will you be able to afford it, or will you have to park it and never use it again?
I also found a leak in my brake system while doing the fuel pump. I bought the tubing that had developed the leak online and it arrived the other day. Cost was $40 including shipping, which was a bit expensive, but it was easy to find the exact part and have it delivered.
Buying Kawasaki allows me to fix it, keep it running and never stress over finding parts.