I'm running a 12L3 for something like 6 months and the car is nice for what I do with, that's mean practice. I enter the class with this car, and want to develop driving skill with it, no real need for the ultimate new toy.
The rear axle is from CRC to get rid of the L3 one, the screw mounting for the left hub upset me from day one. This is the only major change done otherwise, it's stock. I added some CRC Shims, some Jacos, 1 set of Old School Jaco and some Prisms.
The car is strong, as other 1/12 I guess. As it's an old car, there is some issues with loose screw and bolt from times to times, I wrench in between runs; including on some plastic parts, mainly body post. I give hard time to the car as I run 15-20 min, so obviously, fasteners came loose at the end. Some new bolts can partly fix this issue, new plastic parts solving the rest.
Regarding broken parts, none until now, not even a T-bar, even the car suufering my poor driving skill, hitting kerbs, flying with to close of the apex. The pod bearing must be changed on a regular basis, I reach there limit twice as one of the pair blows during a run.
You sure already know this point but if you break something, you can change it for a CRC parts at least plastic one, only CF parts will really be a matter if they fail.
Here you will get some details
, basic stuff for long time experienced runners, maybe useful for newbie