We stayed for four nights. Roberto was an accommodating and helpful staff of Calamo and Artistic guesthouse. He carried our one big luggage for us upstairs when we arrived as there is no lift. There was a breakfast that we will miss because we were leaving early but he sorted out a ‘take away breakfast picnic’ for us the night before. Huge appreciation for this effort.
Property was clean and modern, a usual small-ish size but there was fridge and table. Bathroom was good size and clean. Toiletries provided. Bed was comfy. Hallway noise can be heard at night for latecomers.
Location was great, central to attractions and transport hubs.
The breakfast is served outside the property which I am not sure is indicated on Expedia. Three nearby cafes/restos provide the breakfast and vouchers are given by Roberto (staff) on check in if this was included. It was a disadvantage for us because we did a couple of day trips out of Madrid which required an early start, ie outbound trains at 9am. Unfortunately out of these 3, only one, Brown bear bakery, opens the earliest which is 8am, making it a bit tight for time and only one option for breakfast really for the two days. Casa de Diego opens at 9am so you can eat there is you have a more relaxed itinerary. Both restos serve good breakfast. Casa de Diego won more than Brown bear for their fresh OJ, additional pastry, and posh ambience. The only catch, eggs are not included in the set menu, you have to pay extra compared to Brown bear.