I have lived in Tacloban for few months here and there in my teens for change of environment and learning a different dialect as my dad's first wife is from there and treated me and my brother like her own.
The month of June is a nice time to go as that is their festival.
If no time permitting I will take Mark there this December as I haven't been since 2007.
I will post some more if there are any recent attractions in Tacloban.