I have a SanMai Trailmaster Bowie. I have been using it for about 6 years now I think. I will say one thing right off, It holds an edge for a long long time. I have used other outdoor knives from different manufacturers and never had a knife stay sharp for so long....The knife came from the factory not just hair shaving sharp, but hair flinging sharp. literally the first time I shaved with it the hair seemed to dance off my arm. The edge is rolled, which has it's up sides and down sides. The rolled edge makes it look like it is not really sharpened (because there is not an aparrent bevel line). When you hand it to some one the first thing they usually say (like my older brother) is hey, this thing is not even sharpened. then you have them shave a big patch on their legg. The edge held up under chopping use for 2 + years before I finally broke down and sharpened it......it was still shaving sharp, but I chopped through something and hit concrete and put some very very small marks on the blade. The stainless steel is nice for not having to worry about rust ect. The one real problem is finding some one who can sharpen a rolled edge properly. I went to a few professional sharpeners and they all told me they could not do as perfect a job as the factory edge.....so I finally just did a normal sharpening on it my self.......
All that said, I would think for the money the carbon steel is much more cost effective. everyone knows carbon steel is great, you just have to take a bit of care of it.
That San Mai Kukri will be wicked to use, I would love one, but 400-500 dollars is a lot to spend (depending on your point of view) especially when you can find a CS Gurhka Kukri in carbon steel for $86, and the Trailmaster in carbon steel for 88........ Hope fully the price on the SanMai Kukri will come down in price a bit........
But I love all my cold steel products from the expensive to the cheap (like the throwing hawks, bad ax, special forces shovel, and the new GI tanto.....all worth every penny and also cheap to buy)
With all those good things