These systems look wonderful and I immediately considered whether one would be suitable for home server requirements.
Do to past experiences with these Micro Form Factor (MFF) PCs, from all brands, my advise is to stay far away from extended usage or intensive tasks, AKA Server. I've seen countless of these devices come in and have warranty work done because of failed motherboard, and never have I seen a vendor actually solve the base issue: Heat.
In the review it even points out, the CPU was at 72C. Which might not seem like much for processors that can handle up to 80C routinely, but personally I feel that's way too hot for a stock i5. The real issue is that the processor is packed in a small tight case with ZERO airflow besides over it's own little heatsink, all while baking the rest of the components it lives with. those components, which are not tested to 80C often times or are very cheap in order to maintain lower cost, are the points of failure. Add to the newer versions that they've added larger more powerful CPUs (TDP), NVMe (HOT) and other heat producing components, I'm thinking the same outcomes will happen.
On the other hand, I could be absolutely incorrect. But, I'm not willing to be the guinea pig haha.