Has anyone been to either the Azores or the Canary Islands? Worth a dedicated trip?

Canary Islands are an archipelago compound by 7 Islands quite different from each other. Unless you have a work+visit plan I would not recommend seeing 7 Islands in a rush.
I've never been in Azores but Madeira is great, a mix between Canary Islands and Galicia

West Islands: La Palma, El Hierro, La Gomera.
Three beautiful, green and non massive islands. Ideal to visit by camper or stay at a traditional house. Small and still wild. La Palma volcano awakened last year and creates a worth to see landscape