They did  answer my ticket in a day.

I would have much preferred a non-generic update even if it had to be oneliner actual status update rather than a generic, we are on time, and we understand your worry.,  but  they replied is better than not replying.

They have assured me in their mail, that they are on schedule for the promised date.

I think I will be happy if they start shipping by Feb 24th to anyone.  They have a device ready by Feb 24th will give me confidence. And if they could ship me by March first week also , that is enough confidence for me to invest   four times in their next product.