Keyframe is not a bad tool at all. The real hidden gem in this deal is the Sound Effects (SFX) most tools out now have a nice library and Keyframe is no different. Others have spoken about the search features and truthfully enough it could be better. It is not a deal breaker for $59 bucks and honestly this deal should be more for what you are getting here. How does it stack up against others that have made their way to the LTD Scene? I did a quick verse against one of the best I have seen come through here and that is Melodie. You can catch that here

https://youtu.be/iPFnAuIPXZU

What I liked about this tool is it can has depth but it is missing BPM or Beats Per Minute. I picked it up because it is just a bit different. It is better than UppBeat. It is better than most every Ai beat maker. Well unless it is Soundraw which holds a special place on my LTD bookcase. Must have tool for the value alone and the easy strike removal relationship.