I'm also bit disappointed with the result here are couple things I tried(As I installed it when the daylight has already gone all are taken in room light):
* I had the heater on and the burning rod was red but HDR printed it like it was tubelight(bright white). (tried with both flash on/off)
* I tried the x2 zoom but it had lot of noise with or without flash
* Blurless was satisfactory..

And also I noticed now sometimes when the Image gallery is open when opening the lens cover doesn't start the camera app though its not always. Also, is it possible to make the onscreen buttons little diff so they are easily visible. Besides, great app. thanks