For my own part its the refund, putting that issue aside I feel and you also said it, it's not for us as enduserz. But a glorified port for show rooms.
This means it could have bad behavior, lack of functionality or worse in some areas.

A device included would make me feel good, because that comes with certain obligations, to see a fully implement port without hacks would be nice. But what I would like is a plan for this port for the future. And I'm not talking,"the goal is to make it available for all Sony Xperia" will it have it own team, updates how long will this be officially supported, how much division from core OS is done/will have to be done"

What I mean it won't turn out well is that it could lack things from start and jolla might not care/have time to fix it for enduser perfection/excpectation a month after release jolla will change direction and ignore it like the tablet project.