Réponse :
Bonjour,
1989 : Brown / old-fashioned / traditional / typical.
2017: modern / full of adverts / colourful
2/
Loss of a historical building : negative
new uninteresting building : negative
More fresh products : positive
better meat : positive
higher prices : negative
3/ On the one hand, the 1989 building is old-fashioned, on the other hand the 2017 building is modern and full of adverts, colourful building. Gentrification has turned Harlem into a new neighbourhood.