I'm guessing it will be some time before we start to see some alt-firmware released. The unit I have has been running decent for a few days. I had to shut it down and move it to another location because of the noise it puts out but other than that its been right on around 264GH/S average.

Is it a good investment? Probably not. IMO mining is too volatile to consider any new miner an "investment"  its more like a hobby for me at least and if I make some money at it some day AWESOME!