Worked with the app as soon as it anywhere screwed in the living room ceiling. So no awkwardness whatsoever to get it to work and pick up your iPhone / iPad. The swelling will give approximately the same brightness as an old regular 40watts lamp, and the white color setting so it shines up my tiny living room quite well (living in a 64kv / lower second). So where do the absolute approval when specsen not lying ang. brightness.
The app has a bunch of color themes, such as "cozy fireplace / fire" which slowly change from red / orange hues and flicker to the drinker. Or "Northern Lights" which stratifies between blue-green hues. ETC. They work well enough if used as a floor lamp or lamps. But it feels more cheaply in the ceiling as the main lamp in a living room.
Thankfully there are solid colors, such as white, orange, yellow, blue, red and so on. The solid colors all have two controls, one is the typical dimmer which works without problems, the other controls the intensity / förgtint on the selected light. So for example with white color selected (which is the equivalent of the plain old bulb then), so you can switch between how hot or cold the white color should be. White as standard day-light, muted "orange" in the evening for a little "cinema feel" is gold. :)
Simple app, no cool things like play music and let the light flash at (o whatever that is), but it does what it should and does it well and fast (no lag between phone / toad o lantern).
I suggested some improvements to Elgato, such as notification widget to access the bulb from the locked screen. And they thought it sounded good and would present it to the people that make the app, so it seems to be good support.