Nothing very remarkable to say about this place. It was pretty standard. It's actually small apartments. While there is kitchenette, there was no cooking equipment in the room, so it was not terribly useful for us.
We stayed in Curitiba on a couple of very cold nights in July, and the A/C heating functionality didn't really work very well, so it was a bit cold.
The hotel is in a safe area, and you can easily walk to a few nice restaurants from here. We especially liked Trattoria Barolo.
We didn't have the breakfast included, so can't comment on that.
The airport bus doesn't really stop anywhere very close to the hotel. We walked the first night from the bus stop, but it was a good 30 minute walk at least.
The staff at the reception were nice and helpful, and there was free Wifi, which I think there usually isn't in Mercure hotels.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC