You bring good info. I just have an issue when you say you think the arms break easier than two other brands. You may have broke an arm on a small hit that other cars have had before, but the break could also be related to a big crash previously that stressed the arm and you got away with it. Now if arms were breaking routinely then there would be an issue. There is just no way to compare beside a routine breaking instance, which there is none on the eb48. I've broke Losi arms and I expect to break these sometime, that's the nature. As you said, since boiling them you've had no problems. I recommend boiling them for piece of mind. It's so easy to do and minimal time, why not? But boiling should be done on anything 1/8 scale if you want that extra insurance.
This buggy is as durable as anything out.