Owning a Lumin U1 for a few years now, very happy with the resolution and reliability. If the Lumin doesn't work, it's a network problem, so look elsewhere. Only used the factory reset button once, very early in the setup stages where I goofed up badly, never needed to reset ever since.
The main issue in advantage of the Lumin is the after sales support and updates like Qobuz, Tidal, lossless radio stations, Leedh volume control, the list goes on with firmware updates as needed, not as a result of balls ups.Support is very good, Peter always listens, nothing is off the table.
I was looking for a streamer for the office, thought the Lumin would be a shoe in, but the entry level unit is $500 too much for the budget, so went for the ifi Neo Stream instead.