I'm not a technical expert, my use is for the fighting art not a working task.
So a brief overview of my first impression...
My old HI is a WWII the comparison of that to the Gurkha house is almost the same. The HI is tight, the butt cap on the Gurkha house are usually loose and wobbly. The handles are rough and the blade needs care to keep off surface rust. I have not had to do anything to the WWII.
This new one- handle feels great; all the parts are well secured. The blade is almost sharp as stock. The appearance is display quality. The sheath is well made fits and the weapon comes out (without having to break or cut the sheath a little)
This model is good for me because its fast and the balance offers a smooth movement.
I dont care much about chopping power there is more than enough just in the shape of the blade to take care of that. I use these as a weapon not a tool. This one fits all my needs, though I would change the handle a little and put some sort of stop at the end. The bone handle feels and looks good but wood is more practical for a weapon to have a better grip when wet.
The difference is apparent right away and laying them side by side you can spot it the HI looks expensive and makes the other look cheap.
The cost factor is the only real argument one could use for the Gurkha house.