I bought the 1,000 Lb HF cart, partly because it had a larger surface area than the 500 Lb cart and partly because it was on sale (for not much more than the cost of the 500# cart).
In retrospect, I wish that I had still just purchased the 500# cart, as it is much lighter than the 1,000# cart. Fortunately, I rarely have to ever carry the cart, as I use it primarily for moving machines around in my basement.
As others have already noted, you will need to modify the handle. Someone here has a post on how to to that. Amazon sells these:
That could be place over the ends of your handles, with bolts attaching them to the cart to allow your handle to rotate up and down (out of the way) for use.
The cart does roll over various carpets (even plush) well, as it has large wheels.
Quoted from nsduprr:
With the proper technique, you can take a game from sitting on it’s butt to horizontal on the cart in a few seconds.
I am also interested in knowing what this technique is. Even with my wheels locked, as I tip a pin down to the cart, the cart wants to slide away from the pin as the pin is being tipped onto the cart. I have to always have someone keep the cart from moving, as I tip the pinball machine down onto the cart. If nsduprr can offer any tips to keep the cart from moving away, while trying to tip the pin onto the cart, I would be grateful for that advice also.