I have Mercury on both my current boats and on the last couple also. Only problem I ever had was a switch box on one of the twins acted up. Other than that they have been bullet proof. But then again so are Yamaha, and Evenrude. Todays engines are all real works of art to get the horsepower they do out of small block engines. Lund and Mercury are both Brunswick Marine products, that's why you will find them as a package more often than not.