Yo.
Nothing wrong with the software as far as my experience has gone, just curious. Are sound and media elements not implemented yet as a feature or am I missing something to gain access to it? I am an sfx and track designer and would love to be able to put custom audio for certain tidbits.
Working with it isn't seamless however when starting, you do need to find your way around certain functions as a beginner so i'd highly recommend putting a manual somewhere in settings or making a visual guide somewhere as not everyone (like myself) ends up hovering over everything immediately to see what it does.
That aside I absolutely adore this software. I've only used it for about 3 to 4 days now as I've recently discovered it and I think accomplishes its idea really really well! Working with it is fun and I've gotten some of my friends to download it to work together with it!