So it sounds like this new bulb will have the same problem people complain about with LEDs and CFLs: slow warm-up times. The filament will take longer to warm

So it sounds like this new bulb will have the same problem people complain about with LEDs and CFLs: slow warm-up times. The filament will take longer to warm up to full operating temperature, since you're relying on thermal reflection in the glass to let the heat build up. I guess they could get around this by having a power control circuit in the bulb, to give it a large inrush current to heat up quickly, and then back off once it's warmed up.