Yes, it's not very reassuring. I am hoping that the firmware results in close to a plug and play printer setup, rather than having to fiddle around with the thing to get decent results. I think these beta units are coming with BuildTak surfaces, which are extremely sensitive to the thickness of the first layer. For what it's worth, we found that if the first layer is the right height or too squashed, ABS sticks to BuildTak like crazy. If the first layer is too high, it doesn't seem to stick at all.

Keeping my fingers crossed!