One visit certainly doesn't qualify me as an HH-a-GG expert, but I too was a bit surprised it scored as high as it did here.
Had a specialty burger that was big as a bucket, but I would have to say it tasted about average. Nothing to rock your burger world.
Tammy had a meatload sandwich with topping oozing out all over. For her, it was "too much" sandwich to handle in the manner she usually eats a sandwich! Not sure if I explained that all that well, but she wasn't impressed by size - - at least not in this case!
Anyway - yes - huge portions but average quality I would say. Perhaps a second go-round, a breakfast entree or a visit to another location (this was at the Plaza) might change my thoughts a bit.