I only buy when they have a big discount on them. If I was to build again, I would avoid downlights and go wit pendants. Or use downlights where the bulbs are switchable. Downlights caused this project to be delays by months, because the contractor ended cutting the wrong sized holes, and we had to find alternative lights to fit the larger holes.
Have already had several of these all in one downlights fail, and they are a PITA because the electrician has to come in to first test them, and then order a new one.
LED down lights give a room that clean less noise look since they conceal so well. All comes down to the quality of LEDs and divers supplied by these downlights. Couple of good NZ companies out there like a Visionary tech and Switch-lighting that are locally made with quality drivers and excellent support.