I have a verado 250. 2007 model I believe. I bought it just out of the 5 yr warranty and during the winter. It blew the power head to to a sticking water regulating valve that caused the engine to run too cold and condense the gas to liquid, the liquid filled the crank case with gas diluting the oil. Merc honored the warranty two months out of the warranty period. I really like the engine and the way it runs but they are highly technical. I recently spent $3k replacing parts that were not bad. The same marine said the computer was bad which was another $7k. I took it to North Texas Marine, the guys that changed the power head and they cleaned up some power wiring terminals and fixed the issue for a few hundred bucks.
The down side is the high parts pricing and finding a good tech to work on it. I guess luck should fall into the decision somewhere. I've yet to own a motor that didn't blow up, merc, Johnson and Econ rude. Going to a jap Yamaha next. Maybe it's just me.
Being successful is achieving that which you set out to accomplish!