I'm astounded. I replaced a bunch of 20-watt spots and wide floods with 6.7 and 6.2-watt LED MR-16s and I have more light. They don't dim as low as the quartz lamps and don't flicker except at the bottom of the dimming range. I selected the warm-white over the cool-white as I like the look of an incandescent light for artwork.
I bought a bunch of these in three beam widths, 8°, 25° and 35° to use in my outdoor lighting. At $22 each I could only justify using them outdoors as they are on 4,380 hours in a year. That amounts to something at 13-watts each. I couldn't bring myself to use them indoors as so few are used for any great length of time. The payback is outrageous.
What pushed me over the edge was having to climb on a ladder to replace the lamps in a high ceiling room. That was it, I didn't care what the cost was I wasn't about to be out in the freezing cold or up on a ladder changing light bulbs anymore, even though that's how I make a living.
However, I don't know how they'll ever take off at that price.
I didn't show a brand name. I'm not shilling anyone's product.