Vincci Soma is located in Salamanca district and near a huge El Corte Ingles -department store. There are also streets full of small shops around so location is nice for a shopper. And location is not so bad for any visitor of the city. You can reach center of Madrid by walking or by effective metro network.
Single room I was staying was nice and had everything needed. It was clean. Only problems were early housekeepers with high-heel shoes keeping noise. Disco in same building also woke me up on one night. I'm not sure if that could be avoided in some other room.
As a surprise hotel also has a gym and saunas for men and women. Unfortunately mens sauna was a bit broken eg a higher sitting place was missing.
Breakfast was extremely nice containing wide selection of fruits, vegetables, local ham and sausage specialties as well as traditional bacon, eggs. Also Churros with chocolate were served.
Service in the hotel was generally good.

centrally located close to everything and public transport, well decorated, professional service and well priced. I recommend

This hotel is very well situated, between Goya and vergara. A 15-20 minutes walking to el retiro and plenty of cafes and bar around the area. The service is so good that almost hurt..... We had 4 rooms in our group and we were all happy.
Highly recommended

I stayed in the Vincci Soma in February and had a good time (albeit after they'd moved me from a noisy room with blanked out windows) so I decided to book here again on my last visit to Madrid.

Unfortunately the experience this time was not so enjoyable. Despite requesting (several months in advance) a similar room to the one I'd had before I got a smaller room at the back of the hotel and on a lower floor. I was told it wasn't possible to change. Seems being a returning visitor doesn’t get you any favours.

The single room although small and with a view of next door's drying laundry was clean and had a safe (although no iron). The bathroom just had a large shower but was spotless. Unfortunately I had to request soap and shampoo on the second day and toilet roll the day after as housekeeping didn’t replace them.

There’s free WiFi in the hotel but the signal in my room varied between very weak and mostly non-existent. The TV quality was very poor although this was also the case on my last visit and seems to be a problem throughout the hotel. They should sort this out.

I also noticed the carpets on the third floor didn't look too sparkling. Not necessarily a problem but can be indicative of general standards in the hotel.

All the above were minor irritants but just about bearable. The dealbreaker was the nightclub next to the hotel. I’d noticed this on my last visit but it didn’t affect me as I was on the 6th floor. This time I was on the 3rd floor and never got any sleep on a Thursday night until the disco ended in the early hours. Very wearing.

The walls were pretty thin as well so I was more aquainted with my neighbours comings and goings than was strictly necessary. If you can’t guarantee a room on a high floor I would seriously consider another hotel.

On the plus side the staff at the front desk are very friendly and helpful. They even understood my poor Spanish and would switch to English when I struggled. The rates aren’t too bad and the location in Barrio Salamanca is great.

Once you been to Madrid a few times it’s the ideal area to stay in. There’s a couple of El Cortes Ingles department stores nearby. There’s very few tourists around and the bars and restaurants are very good. There’s also plenty of metro stations and getting to the airport costs just a couple of Euros.

I visit Madrid a couple of times a year and I’d like to stay at the Vincci Soma again but I don’t want to end up in a poor room. As it seems they can’t honour requests, even several months in advance I’m afraid I’ll have to look elsewhere. A real shame.