Assume he is refereeing to the air conditioners. They were very visible in the unit we had last year. I agree it felt odd to have them right by the door, but that is probably better than by the patio in the back where they would make noise and blow off heat.
While I could be wrong, I think that they are heat pumps - - basically an air conditioner that can be run "backwards" (not really, but in effect) where it could also heat the unit as well as cool the unit.
Yes, they are in the front by the parking lot and you walk past them as you enter. If you in an efficiency unit in the interior of the bldg, I recall that the lanai faces towards the parking lot and you might hear the ACs. If you are in an efficiency on the ends of the bldg, the lanai faces the back of the bldg so it is less likely that you'll hear the ACs. So I advise people in an efficiency to request one at the far ends of the bldg. If you are in a 1 BR, the lanai faces the back of the bldg (towards the golf course).
BTW, in DSV2, the AC's or heat pumps are mounted on the flat area of the roof. So, you won't see them entering or exiting the bldg.
BTW, I own at both DSV1 and 2.