It is possible to walk to/from the hotel to Osaka station without getting on street level.

The buildings are all connected on the 2nd floor via skybridges.

As for food, everyones tastes vary.
There is also Japanese rolled egg Tamago, hard boiled egg n onsen egg as buffet item, not just the omelette dish.
i really liked the jpn braised mushroom dish, grilled mackerel, beef udon, various smoothies.
it was a very good breakfast.

corner suite was amazing!
Getting this room as an upgrade makes it much more worth it over conrad osaka which is stingy about upgrades.