I can’t speak to much on high quality servo’s but getting back into all things rc this year, I have bought a few pairs of no name, chinese made generic servos off of Amazon, and so far, so good honestly! Ive just been sticking with “35kg” for steering and “25kg” for throttle/brake, I’ve done up 3 trucks now and have personally had zero issues. Obviously, you gotta take the ratings with a grain of salt, but they’ve been plenty strong and fast compared to the old crappy factory HPI, Traxxas, JR Racing and cheap Futaba ones I’ve been replacing, not to say any of those are actually bad servo’s per se, but all mine have just desperately needed to be replaced as they were super slow and had no power.
Not the fastest things around either but they’ve been quick enough for me, mostly just been bashing the ever living crap out of mine so far! And pretty cheap too, my first pair I got, I bought singles, was around $80-85 Canadian for the two, second time around I bought them as pairs, 2x 25kg and 2x 35kg, they may have been on sale but I think I paid 90 bucks total for all 4 the second time! I’d definitely say if its just general running and cruising, give them a shot, if you worried about them failing early get a 2 pack of each, but if you are looking to do some track time or really depend on speed and reliability, a better brand name would be worth it I’d say.