Highmountain was nothing great but didn't bother me. The bungee jumping in Stormheim however really got on my nerves after a while.
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Fair enough. What I didn't like about that is probably the "Northrend but south" kind of feeling, especially with Ymiron Skovald pledging his allegiance to the Scourge Legion in order to be some mega powerful king. I also found the part with all the storm dragons and damn hills pretty annoying.