Excellent location! Great Host! Helios is available almost immediately and answer questions in details. The apartment is close to all restaurants, Train, Metro, SOL Plaza, and many tourist attractions. There is a club across the tiny street. The apartment has double windows, so the outside noise didn't bother us at all. This place is good for up to 3 people. Check in & check out was very easy and only 30 steps away on the same street. If you follow the Host's directions, then you will not have any problems at the time of check in/out. We'll l stay at your place again if we ever come back to Madrid. Thank you Helios!