I come from a family that practiced (and some still do practice) Seventh Day Adventism. I never really had exposure to Adventist theology growing up but later in life I wanted to know what my family grew up in.
I went to one of my Adventist family members and got a copy of the book The Great Contraversy by Ellen White. The author of this book is also seen as the prophetic leader of the Seventh Day Adventist movement. It was a very intriguing read and it proposed a lot of very Anti-Catholic ideas as well as claiming that there was another church that was suppressed by Rome, claiming that Rome was the Anti-Christian institution that was trying to destroy the "real" church that observed the sabbath on the traditional Jewish day of Saturday.
Although I really enjoyed the book I did not view it as any real religious authority on matters of faith an morals, but moreso a story.
I watched a lot of videos from a prominent adventist from the 80's Jim Arrabito. He was an outspoken critic of the Society of Jesus, also known as the Jesuits. He gave me the vibe of someone who was deeply convicted in his belief but I am not certain if our beliefs are the same.
I love my family and I do believe that God is the one who saves us from ourselves and our sins towards one another. I rest easy knowing that my SDA family feels the same way.
God Bless You All!