They are strong and fast servos, for an amazing price.... so, if you are very budget minded (or budget limited), they are a no-brainer. If you have a little more depth to your pocketbook, I would look elsewhere as they really tax the power system. Some people have no issues, but some people do. Me? can't get me away from futaba BLS servos. They are more expensive (almost double), but they are lower power consumption, stronger, better built, and look better to boot

Do it comes down to budget.