||I've had my 22 RTR for a couple months now and I've been racing weekly at an indoor carpet track. There's no question that is is a really well designed vehicle, but there are some flaws with the RTR. I'm convinced that 22 is currently among the best 1/10th buggies available, but I think if you're a serious competitor you're better off going with the kit and buying you're own electronics.
The stock servo is high torque and somewhat slow. I actually don't mind this because the 22 has so much turn in that the slower servo actually helps keep the thing under control. But, a more experienced racer will likely want to replace this as soon as possible.
The stock motor is solid as well. I've had no issue with the motor at all. It's reliable and plenty powerful.
The stock ESC fried after several races and I ended up having to replace it. This was disappointing. It performed fine, but for the price of this vehicle, it hould have lasted longer than it did. It never got excessively hot, and I always used the factory gearing with a 2S Lipo with Lipo cutoff enabled. There is no reason this should have happened.
The stock transmitter is surprisingly high quality for an RTR, but the receiver is ill matched for this vehicle. For starters, it's too big. It gets in the way of the battery. I had to remove mine and attach it with velcro so that I can take it off when I change battery packs. After replacing the ESC, the receiver no has issues with interference because the battery leads are so close to the receiver. I don't know if a higher quality receiver would help this or not. This is the only flaw with the 22's design that the interior is so tight, it's hard to find space for all the electronics.
The stock tires are okay by RTR standards but are sub-par compared to various aftermarket tires.
The stock setup is on the the soft side. It probably works well on a dirt track, but on the ultra smooth carpet track where I raced, it needed to stiffened up with new springs and shock fluid.
I also sheered a drive pin after 2 months. This isn't a huge deal, but the 22 buggy uses hollow drive pins that are prone to breaking where as the 22 SCT uses much stronger solid pins and I'm confused as to why the buggy doesn't use those too. I broke a front control arm too, but I can't blame that on the buggy. I missed a jump and hit a wall head on. Overall I'm very impressed with the durability of the chassis. It's survived a lot of abuse.
In the end, despite these flaws, the Losi 22 is an incredible machine. You don't need to be an engineer to see that this is an exceptionally well engineered vehicle. The only flaws are in the RTR components. I highly recommend the Losi 22 kit, but I don't recommend the RTR. Ultimately you will spend more money replacing the sub par electronics that come with the RTR than you will buying your own electronics and tires for the kit. I have no complaints when it comes to the core design of the chassis. I recently built a 22 SCT kit and it was a very easy and fun build, and I expect the 22 buggy kit is the same way. Same your self some time and frustration and get the kit. You won't be disappointed.