The picture attached is of a lamp board, and other companies are now using these too. The node boards that fail most often on Stern are Nodes 8 and 9 as they are responsible for coils and switches. Major through hole components are easy to diagnose and replace. The smaller surface mount chips - definitely much harder for hobbyists but not impossible. Typically I've found that if they fail, they tend to do so after low use. Then they're pretty robust.