Those are the ones I have. I'm using them with Caseta dimmers and they require a small amount of trim on the low end.

They do not dim as smoothly as the youtube video and that knob dimmer shows. They have a slow-ish ramp up and then when the second stage kicks in the pause slightly and then kind of "grow" into the room.

They work best when you set a light level and leave it but if you like the smooth gradient dimming of an incandescent they don't look like that.

The cool color temp is very nice at low levels. I like the Cree lamps ($5 at Home Depot) in Lutron dimmers but their color temperature stays the same at all levels and it doesn't look right.