I've had my time building some of the Royal and Marutaka kits, they have excellent die cutting, the parts fit well together, have great scale outlines, fly well, BUT...the plans can be quite vague, they seem to like to use several pieces of wood to build something that only requires one piece, and all the important stuff on the plan seems to be in Japanese. If you take your time, and look at the plans several times before you glue the parts together, you will have some very nice airplanes.