This hotel has a splendid location, on walking distance from Cathedral and Alhambra. The hotel is excellent, with beautiful rooms and a magnificient internal architecture. The garden-terrace is a jewel.
But most of all, the kitchen is worth a Michelin star. It is very rare to find in Spain such quality, at very reasonable prices. Service and maître were upperclass.
Just a small example of the service-level: the windscreen of my car was cleaned before departure. I have experienced such kind of service only once somewhere else during the last 20 years.

We stayed here during our honeymoon through Spain in June 2008. Although the hotel itself boasts a beautiful calming clean modern decor, we found the service to be subpar for a hotel of this class. Friendly welcoming interaction with the front desk staff was lacking, and what's worse, we requested the young lady at the front desk to make a dinner reservation at this nice restaurant near the Mirador overlooking the Alhambra, she said she would, but when we got there, there was no reservation and they told us they had not received any calls that day from Villa Oniria! Like I said, it's a beautiful hotel, the room was clean, comfortable with a modern decor, and a balcony overlooking a quiet plaza with a fountain, however as mentioned above, the desk staff was aloof, which left an unwelcoming sour taste. The location is good and we walked to Plaza Nueva, the Albayzin, and it was a short taxi ride to the Alhambra (or you can take the shuttle buses from Plaza Nueva). I would still recommend this hotel to someone looking for a hotel with modern decor and spa-like ambiance in Granada, and perhaps by now, the staff have had a lesson in customer service! However coming off a stay at the incredible Hospes Palacio del Bailio in Cordoba which set the standard for this class of hotel in our opinion (style, location, decor, and amazingly friendly staff) , Villa Oniria just didn't earn a 5-dot Tripadvisor Excellent in our opinion.

We recently stayed for 1 night here while on holiday in Andalucia.it was a beautiful hotel with a lovely terrace garden to sit and enjoy some food and drink or a quiet read.Our room was lovely with windows over looking the street ad terrace garden.Reception staff were very welcoming and happy to help.
I would recommend the local restaurant "Chikito" in the square near by with excellent local food.

if my air conditioning worked in the room ,it would have been better , sweltered in a stuffy noisy room overlooking the back street with kids and mothers yelling all morning ,while i tried to sleep .I dont really think the fitout of the rooms meets the appearance of the hotel ....
the restaurant was great - i booked late and told no reservation on the 2 nights i was there - but they found a table for me after i persisted - a wonderful dining experience which made my stay at the hotel . great courtyard and enjoyed people watching late in the day