Hand truck. What do you have and do you like it?

Magliner brand, but they are EXPEN$IVE.

I much prefer a "D" handle design as you can "one hand" the two wheeler, including tight turns and use the other to steady the load if necessary and during sliding the nose under and out from the load.

I do not care for the fold able models because of exactly the opposite issue, they are a back killer because you are bending to load them and bending to unload them.
You are losing the leverage power of the hand truck by not utilizing the nose to slide under the cargo.

Operating a hand truck/ two-wheeler is somewhat of an art.
"acquiring" the load and "discharging" it without toppling can be difficult to master for some.
Timing "the lean", and the foot are key.
Same goes for one handed operation.

In my late teens, I worked over-night stock at a small chain grocery store.
We had many unsanctioned contests utilizing the two-wheeler.
I was tied with one other employee for all time heavy load at 600 pounds of sugar/flour