Time Out says
Located between the Chiado and the Bairro Alto, this hotel is both sunny and melancholic, both timeless and contemporary, and it is full of local charm.
That might seem an odd mix, but it is not. The four-star 9 Hotel Mercy wants to bring a little bit of peace and quiet to one of Lisbon's most agitated streets. That might seem tricky, considering how busy the area's shops, bars, restaurants and monuments are, but the hotel is nice, calm place where you will feel like staying – and slowing down. The first order or business was to give its building a major makeover (the old facade was left intact) to make the hotel as comfortable as possible. The seductive decoration is achieved through dark colours, light but imposing furniture, leather armchairs and a snake of light weaving through the ceiling from the front desk to the bar.
The hotel has 47 rooms, some of them with a balcony or a patio, but the best view is from the sixth floor terrace, where you can see Lisbon all the way to the river, ideally with sunglasses on while holding a glass of wine. Downstairs, there is no restaurant but Le9 serves light meals; there is also room service. It is important however to notice that the bar does not specialize in food but in mixology: their original cocktail menu is infusion based – they have a great selection of teas. Breakfast is a neverending food festival, so you'd better pace yourself: homemade yogurt, detox juices, “nata” tarts, croissants, five varieties of bread, bacon and eggs are some of the offering.
Free parking is available, and so is free wi-fi throughout the hotel.