I didn't know you had a RU-vid channel! I know your IG. This music you are using is from Need For Speed High Steaks which came out in 1999 and man it brought me back real quick.
What reliability issues are you referring to? The only ”Land Rover” specific issue i have had is the air compressor, which is just a case of natural wear and tear. Had an alternator and harmonic balancer go. I've got the 4 litre petrol (which is a Ford engine) which doesn't have major issues.
Honestly one of the best value 4x4s you can buy these days, what you get for your money is amazing, compared to what people are paying for much older, less capable (in stock form) vehicles.
The centre diff locks and unlocks with a variable clutch pack controlled by the terrain response mode depending on what mode you are in. There is a factory rear locker available, not fitted to any of the cars in this video.