I only experienced HUD with my own phone.
In my opinion the system is god only at night, used directly with the windscreen, the reflections being acceptable. The foil and the mirror don't help at all on day and on night the improvement is insignificant.
Something promising (except the factory equipment of the car) seems to be Huddrive --https://hudway.co/drive, but I think that it's also still only for the night. For the moment it is a expensive toy .
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