I played them all. Still didn't finish Andromeda, I paused at one of the last missions about 2 months ago, will probably finish it later this year. That's a one long (and a bit empty compared to other ME games) game!
The Mass Effect series are amongst my favorite games of all times. I disliked sci-fi until the first Mass Effect which got me hooked big time. The stories, the teammates and the authentic presentation of how it would actually feel to be there, doing what Shepard did, made the games a masterpiece. Maybe it's that bias, but the story (canon up to ME3) to me was better than all of the cult classic sci-fi books that I picked up since then. Still doesn't hold a candle to the Mass Effectt storyline, its codex and filling in the gaps with the wiki.
I loved Mass Effect 1 & 2. Both were absolutely amazing. Mass Effect 3 was good, with overly hasty and disappointing finish. Andromeda is still a Mass Effect game, just not as good imho. Most people had quality issues, but for me, it's the writing and characters that took a nosedive. It looks like EA might drop the series after Andromeda, and that would be a shame. Some better writing and Andromeda 2 could be a great game.