I had a Brute Force 650 with the SRA. That's where the Brute in my handle came from when I was originally on the atv/ utv forums.
It didn't have any problem. My uncle actually still has it. Cousin of mine has the 750 with IRS.
They can straight up haul butt. I had some clutch Springs and a cdi with 26" tires. I'm a big guy and when we would race on asphalt I would get all the way over the handle bars and it would keep the front end up a foot or some for probably a good 100'. Ran right behind a kfx400 and would beat the smaller sport bikes.
I use to pull a dog trailer, seats, ect when we hunted. It handled it no problem. Drug a few utvs that broke down or got stuff off some big ranches when we would be hunting. Kind of used it for tow and recovery.
That's been several years ago, kind of when they first came out.
They are based off the old Prairie 600 and 700s which were very reliable. The BF was kind of known as the Muscle Car of the atvs. They do have the power to snap cv joints, belts, blow front diffs, ect if you do things your not suppose to. The reason the old rancher 350 is so reliable is it doesn't have the power to put any thing in a bind. The BF 750 can break stuff if you abuse them or start modifying them.