Don't confuse capability, durability and reliability. Lord knows the LR3's capability has been demonstrated beyond doubt, Similarly, I have found the LR3 to be highly reliable. However, it is not as durable as other vehicles with similar capabilities (utility, not comfort). I think that at least 90% of the LR3 is rock solid. The frame, body, engines, interior assembly and majority of the electronic systems are very durable. However, in my opinion the undercarriage electrical connectors, the transmission, the rear differential, the EPB, the amazingly pathetic suspension bushings, the steering assembly, the front CV's, the swaybar bushings, fuel pumps, air conditioning balancing system and a few other odds and ends are not up to the regular and repeated abuse that a Jeep or older style Land Cruisers (80 series or older) can take. This is not an issue of electronics, it's just economics. Land Rover did not set out to build the most durable car on the planet, they set out to design one of the most capable, comfortable, and versatile vehicles available, and they succeeded. But to take it to the next level in durability would have cost far more in production costs than could ever be justified by the LR3's target demographic market.
Would I travel to the ends of the earth in one? You bet. Would I drive one every day if I lived there? Not without a really good warranty.