I made a slideshow, 20 minutes in length, for a graduation. It turned out exactly as I had hoped! The transitions are beautiful, lots of choices, you can add your own music. The themed templates were a little cheesy, in my opinion, so I did the collages from scratch. Love it!
The only complaint I have is the music transition…BUT I just received an email from Kizoa yesterday saying that they have improved that, so I assume it's all good now.
What happened with me was that the slides would sometimes be a tad longer or shorter each time I reviewed it, so sometimes one song would start to repeat and then abruptly start the next one. I had to merge all my music into one 20 minute-long "song" in Garage Band and add it as one. One song didn't automatically start after the next one. That was a problem. I assume that's what they fixed, but haven't checked.
All in all, it ended up just how I wanted! If you don't have this type of program in your computer already I would definitely recommend Kizoa. I did buy the premium membership for the project.
Yes, we did indeed introduce a new feature last week that tells you exactly where each song ends as well as how many times it has looped! This should help resolve the issues you had in the past. I also want to let you know that a new feature is in the works and will be available soon so that when you are playing your slideshow it remains synced properly without any differences regardless of how many times you play it. Let me know if the music features are working better for you :)