Hannah Whitall Smith has said that God spoke to her about universal salvation. However, some people have heard God speak to them about Hell and eternal damnation. What say ye?
Now the Berean Jews were of more noble character than those in Thessalonica, for they received the message with great eagerness and examined the Scriptures every day to see if what Paul said was true. Acts 17.11
Seems like good advice to me. 
For it was the Father’s good pleasure for all the fullness to dwell in Him, and through Him to reconcile all things to Himself, having made peace through the blood of His cross; through Him, I say, whether things on earth or things in heaven. Col 1:19,20
For everyone’s benefit, here’s the Wiki entry on Hannah Whitall Smith Visions of contemporary and historical figures can be a valid source of info - provided they are in accord with scriptural, theological and contemporary scientific understanding, as we know it.