We spent three nights of our 8-night Orlando stay at Portofino Bay last month - definitely enjoyed it, but it felt far less 'active' than when we stay at Disney on-site resorts.
There were rarely crowds anywhere - at times the resort felt empty. Very surprised that at midday, the Gelateria was closed...didn't open until 3pm. The Thirsty Fish Bar didn't open until 5pm. If I'm going to have a 'resort' day, or come back midday, those are the types of places I'd want to hang out along with the pool.
We'd go and stay there again, but likely only for park-specific visit. The Disney resorts just have more of a 'resort' feel with activity and dining options almost always available in full.