I have not bolted it to any trailer yet, so I cannot speak to it's power. I am working on a design to allow me to quickly move it from trailer to trailer. ( I have 3 to try to include). I will be modifying it in some way.
The biggest complaint in reviews is the mounting bracket being too weak. I don't know if it has been enhanced since these reviews, but the bracket included is made of rather heavy steel. I know from reading earlier reviews that some people have installed it incorrectly, by not placing the bracket slots over the post embossments. (Maybe they can't read). Incorrect installation can certainly cause failure. I do not anticipate any issues with the bracket. I may be replacing it all together, however, depending on how I work out my trailer-swap design. The Trailer Mover appears to be a great product for the price.
I will review again when I get it installed.