Three Italian league teams were considered as finalists in three separate tournaments where two teams were already considered as runners-up but Fiorentina and Roma were the runners-up but they dominated the match but luck was not on their side as they did well in the finals of two separate tournaments and eventually don't won the trophy. Now as the last team of the Italian League, Inter Milan will play the final of the UEFA Champions League where their opponent is Manchester City.
Manchester City is a tough opponent for Inter Milan in this tournament as well. As you said win against manchester city is impossible without a good counter attack i also think the same as inter milan will play defensively so if they can score it on the counter then they can win against city.
Three Italian teams in all the European championships this season show that the Seria A has improved. The league is ratted below the English Premier League, Spanish La Liga, and the German Bundesliga. But Fiorentina, Roma, and Inter Milan have proved that they can be one of the number one leagues in Europe if they can have access to the funds the English league attracts. But they haven't been lucky to win any of these finals. Spain through Sevilla and England by West Ham have borough trophies to their nation, maybe it might be the turn of Italy to get a taste of a European Cup this season through Inter Milan. Inter's chance of winning the UCL is small but nothing is impossible in football, especially in Europe.