Having finished the game myself, I have to say that the entire ending sequence just felt "off".
Not because it created more questions than it answered, but because a lot of things didn't add up. I have a strong belief that we haven't seen the end of Shepard, especially after seeing that he's still alive at the end of the Destroy ending. But he was alive in the midst of a pile of impact rubble, and that leaves a very, very large room for interpretation. My interpretation? He's still alive after Harbinger's laser hit him and that whole sequence happened in his head.
Got to process this a bit more, but the ending didn't made me angry, sad or pissed off. On the other hand, it left me curious, extremely curious as to what's going to be Bioware's handling of the game in the future months.
Current PC Build
CPU - i7 8700K 3.7 GHz (4.7 GHz turbo) 6 cores OC'd to 5.2 GHz with Watercooling (Hydro Series H110i) | MB - Gigabyte Z370 HD3P ATX | Gigabyte GTX 1080ti Gaming OC BLACK 11G (1657 MHz Boost Core / 11010 MHz Memory) | RAM - Corsair DIMM 32GB DDR4, 2400 MHz | PSU - Corsair CX650M (80+ Bronze) 650W | Audio - Asus Essence STX II 7.1 | Monitor - Samsung U28E590D 4K UHD, Freesync, 1 ms, 60 Hz, 28"