I bought the Huina 1550 Excavator and 1540 Dumptruck for my nephews. I was pretty impressed with the excavator, lots of functions. Not super powerful but will move sand or elbow macaroni. Dumptruck doesn't "steer" by turning the wheels, it operates like a skidsteer. I should have bought a couple spare batteries, they last a while but charge pretty slow.
They've held up pretty well for being played with by kids from 4-9. I think they managed to burn up the motor that rotates the cab on the excavator. You can get some replacement parts. They were also cheap enough that you aren't out much when they die.
What I found was that there were either $$$$$ really cool construction equipment with hydraulics and such, essentially adult toys. Or toy quality stuff that really wasn't worth much. The Huina stuff is on the higher end of the toy grade stuff.
IIRC the Huina stuff is also sold under another name but I can't remember offhand what it was. I can't remember if I bought from banggood or gearbest. Whichever it was shipped pretty quickly and it was quite a bit cheaper than any I could find for sale in the US.
https://www.gearbest.com/rc-cars/pp_536395.html
https://www.banggood.com/search/huina.html?sbc=1