LC is outstanding by Carribean standards but does not compare to Pacific sites like Palau or Fiji. But then again, you can't get from Miami to Fiji in 3 hours either. It depends on how much time you have as well as budget, but there is no possible comparison.
On the other hand, LC in my opinion, is significantly better diving than Coz, GC or Bonaire, and still relatively easy to get to. At the airport on LC, there actually is a cordon rope between the parking area and the airplane taxi area. The roadway to the West end of the island actually runs South of the airstrip. There is no risk of planes and cars running into each other.
Travelling to and from LC is quite civilized these days and I don't think people should be frightened off by exagerated comments about grass strips, cars, herons etc.