I got two of them from ebay recently at around $30 HKD each, the price is nice and the brightness is acceptable for soft illumination, the problem is that the light is closer to blue than white. The standard E27 interface worked out great.
Again, if you want them for soft illumination, the blue color is going to work.
I would say that cheap LED illumination technology is not yet ready. I wonder why, because it works pretty good for flashlight, and in that case, they're bright and truely energy saving.
I shall wait for another six months and longer to buy another small batch.