When you try to remove filler words it still keeps a piece of the word so if you said "so" or "and" too many times for example and you delete that word from the captions it will still make the "s" sound a little bit, so it sounds worse than leaving the word in. It has a strange feature of starting with 5 second clips so oftentimes you'll add your clip but it makes it 5 seconds so you have to keep dragging the file to make it longer. Videos over 20 minutes give a warning they'll be unstable. I've had it for years but typically end up just using other free or paid apps instead. They have an app that shows on their website FlexPix but when you try and login it's not connected so you have no credits. I tried to contact them but never received any response. You can only use FlexClip on a PC not your phone. The voice clone sounds similar to my voice but it has zero laughing, smile voice, or change in tone or pitch. Completely flat and useless unless maybe it's only for a quick sentence maybe, but if it's that short might as well record yourself saying the sentence