Also unless you carry 5 meters usb and hdmi cords I don't think that use case is so universal. Power outlets are usually so badly located in hotels.

[1] basically I empty the handbag of everything that is not spare clothes. It is just easier to throw everything on that plastic tray than filtering what needs to be shown or not.

To each their own, but I specifically avoid taking a laptop on any pleasure trip where I want to limit the work I can do, not to make it easier to do work.

If it is a work trip (or at least work-interlaced), plugging a custom device into a hotel TV screen sounds tedious - and the screens are probably going to be of poor quality (low resolution, low refresh rate) - so good enough for a hotel room but much worse than a laptop or a monitor.

That said, glad it works for your use cases. If so, it probably will work for at least one other person!