What caused me to consider universalism was, first, that it actually does seem to agree with the personality of God, as described in the new testament, coupled with my discovery of just how poorly the words olam/owam and aion/aionion/aionios are translated. It caused me to re-read scripture regarding what happens after this age. I suddenly saw how we really don't know what we think we know.
And the bible teaches that God is willing that none should perish, yet he says in Matthew 11:21-23:
“Woe to you, Chorazin! Woe to you, Bethsaida! For if the miracles that were performed in you had happened in Tyre and Sidon, they would have repented long ago in sackcloth and ashes.
But I tell you, it will be more bearable for Tyre and Sidon on the day of judgment than for you. And you, Capernaum, will you be lifted up to heaven? No, you will descend to Hades! For if the miracles that were performed in you had happened in Sodom, it would have remained to this day.…"
So, He is willing that none should perish, but he chose not to do what would have caused those cities to repent? Sounds like this age is simply one act in a play of many acts. We only have a hint at what will happen in future ages. And I suspect there will be a lot of them - and the saved being in heaven is just one of them, to be followed by who knows what. We see as through a glass darkly. We don't know what we don't know, but we definitely know what the Lord allows us to know. And that is that it is better to be saved than to not be saved, and what we are saved from is death. And what saves us is the blood of Christ.