I have ordered stuff from them before and they delivered every time. I don't think they would sell something they don't plan to ship. If you look at the inventory it is a little parse.
Also I believe they contract an outside company to manage the warehouse and to fulfill orders
I made an order on their site just last week without any issues. Granted, I haven't received it just yet since it's an international shipment, but according to tracking info it's in transit.
I have ordered stuff from them before and they delivered every time. I don't think they would sell something they don't plan to ship. If you look at the inventory it is a little parse.
They require a lot of driver work to get everything working. Many of their chips for example only support h264 hardware decoding at the moment, although they would be capable of h265 as well. Another example would be the PineTab 2, which now after a few years has working wifi and an alpha bluetooth driver. Yes, it's always getting better, but very slowly and it might well take another few years until you can just run a mainline kernel with full hardware functionality.
I'm focusing more on the community building and advancing software parts of the work they did/do. Some products are in a pretty good state, but that's not the case for others.