OK let's see if I can answer all of your questions. I purchased the A19, 60watt equivalent. Its rated at 800 lumens. Looks on par with other similar LED bulbs I have purchased in terms of brightness, build quality and light output. I have a variety of bulbs I am comparing to at home including Philips, Cree, Ecosmart and now GE. The GE Link feels heavier than the others from extra electronics I assume. The antenna is visible inside but you can't see it when it is on.
The only negative I can find is, as with most LED bulbs, it only dims I'm guessing to 30% brightness. For a bulb under $15 that works with my Almond+ out of the box, this is a very minor complaint. Hope I answered all of your questions. I'm attaching a picture of the bulb so you can see the antenna.