Certianly nothing wrong with either yoke (A) or DIN connection and the Legend is a first class reg. One issue you might have is most rental tanks in the US and most of the caribbean are yoke (A) type. Unless you do all of your diving with your own tanks and never rent/travel with the reg, you may have some problems getting DIN tanks. If it does come with both, swapping between the 2 is fairly easy, something most diver could do themselves or a very quick swap at a LDS........unless they are POed about it being bought off line. The reg being supplied with both is not a bad thing at all.....actually a desirable feature IMO.