Single Status Update
I've been emailing back-and-forth with Kingston for a bit regarding the 250GB Kingston A2000 NVMe-drive I recently bought; the drive suffers from an issue with power-management under Linux that causes a hard system-crash, which is obviously not a very nice thing. This crash can be worked around by applying "nvme_core.default_ps_max_latency_us=5500" to the kernel command-line via e.g. /etc/default/grub under Ubuntu, but that means the drive won't ever use the lowest power mode. Also, having to even apply such a workaround obviously should not happen -- a less technically-inclined person would be tearing their hair out and could lose important data! I, personally, can deal with the workaround, but by nature I can't help but be bothered by the thought of anyone who won't know to use it.
Kingston's folks have been very nice about this whole thing, immediately taking my ticket with the seriousness one could expect and have been asking me for more details about when/how I can trigger this issue to happen and such and they are now working on a fix. Apparently they have to talk to the manufacturer of the controller, so it's not a very easy fix, but I can say I've been very happy with Kingston's handling and their communication with me about it so far. Good customer-support and handling of issues like this is something I value very highly and my view of Kingston has definitely gotten a good bump up.