I had servo trouble as expected, and didn't want to spend a whole lot of money on a servo, so I took a chance on the Corona 238 servo that everyone had heard about but very few actually used one. Here's a completely honest review.
To be short and sweet, for the ~$9.00 price I paid for it, I simply cannot complain. But that wouldn't make a very honest review, would it?
Good: Cheap, very easy to install 90% drop in, slightly faster just by the naked eye judging, and metal geared.
Bad: Somewhat glitchy, not to the point of idiocracy, but it's there, and poor return-to-center
As stated above, it is good for the money, and very easy to install. I cut the little ears of the bottom with some side cutters, used the included screw with the factory steering arm, and BAM I was up and running again. At times, it will not return to center, and that is more of a headache than one would think. But, it sure beats a broken truck. I wish I had pictures of the install, but come on people, it's not that hard.