Hello Lera,
Sorry, I know nothing about Haller. I assume that you vouch for his faithfulness to God, and His Word?
I say this because there are SO MANY false teachers about, and we must be very careful to whom we listen.
Thanks!
He is a believer and very faithful to the word.
What he does is review each weeks news headlines.
His updates are very informative on what is happening around us. I usually don’t have much free time on Sunday between church and and a nightly bible study I am part of but I always make time to listen to this update.