As other have said, I have never gotten banana from it. Spice and citrus, to the point where someone asked me how much "lemon or something" I put in it. I ferment at 68 (start) to 74 (finish) and mine were done in about 10 days (1.044 starting gravity, 1.002 finish), so at your temps you should be done in a couple weeks. Always test though, the time is irrelevant, the gravity and flavor will let you know.