We moved to Madrid a few years ago. Summers are incredibly long and unbearable, to be honest, and it's not getting better. We have a 2 year old daughter and it sucks not being able to take her to the park for weeks because it's scorching hot.
Other than that, we like the city, and especially our neighbourhood.
That’s 80% of the country you’re describing there. I don’t know anyone who doesn’t do a siesta in summer, and elderly people continue throughout the year
I have met many foreigners from Northern countries who made fun of siesta... until they stayed in Spain for a summer, then they understood it very quickly xD
Other than that, we like the city, and especially our neighbourhood.