Their rock is "high quality" stuff.. and carries a matching price tag..
Expect to potentially get rock with plants/corals/fish/urchins/sponges,etc... living on/in it... Make sure you are ready for that..
You also pick it up at the airport and its shipped submerged in water..
Is is regarded as the best of the best "living rock".. which is more than "live" just because of the bacteria on it..
Why is it you are wanting "live rock" specifically?
Many just find it better/easier,etc... sourcing "dry rock" and cycling it or even purchasing a few pieces of "live" rock locally to kickstart the dry rock..