I have a Rodan and have posted comments on the knife several times.
At first I didn't really like it because I couldn't get it as sharp as I thought it could be. Also, in my opinion, the handle was too long for the blade length and the balance was not right,
I managed to get a decent edge but I still think the knife handle is too large for the blade length and so the Rodan is not one of my favorites.
I do not have any issues with the quality or the sturdiness of the knife at all. I think it could take on a Buick and hold its own. I even think the sheath is not bad for a knife of this price.
Having said all this against the Rodan, there is a part of me that wants the Kumunga because I think that blade length would be more what I am looking for.
I think the blade width is about 3/16" at the thickest part.