Lisbon has totally captivated me - is it wrong to have a list for what a city needs, I am definitely erring on the not side.
So the attributes required to make it gritty and liveable I've learnt for me are comprised of four simple things:
Amazing urban spaces and art
street scapes and buildings where too much decoration is never enough. The 18th and 19thC building tiles have morphed for 21stC into tags, throwups and murals; adornment seems to be in the DNA here.
Killer coffee and food
where coffee with milk is an abberation
where a steak sandwich is dessert
where a pasteis is breakfast
where you get ripe cheese and aged port at the local store
where you can eat barnacles
Close to the water
and lastly totally walkable ideally with hills and doubling back narrow roads (and yes ok, old school gyms)