I've been using it also since the first app was developed and I've been sold ever since. There were issues here and there but it just keeps getting better and better! There are other apps out there that are good too but, DJay is easier to overstand and simple yet powerful! Although the features are flawless and everything is working excellently, there is still something missing, the ability to create and save playlists within the app instead of having to do it through iTunes first which is kind of complicated if you're basing your mixes off of BPM. Being that in Djay it displays BPM, it would be easier to create playlists that are closer in range so that you can have sets of songs that are more mix friendly with each other right there from the moment you open the app. Otherwise you have to get the song BMP in DJay, go back to iTunes, find the songs and create playlist. THEN...you go back to DJay, (REFRESH) to see the new playlist when it would be SO much easier to do it within the app. Just a HINT...HINT, but I love it! I've been DJing for over 20 years and the midi mapper makes it easy to set up controllers for whatever you're using and the scratching feature keeps up with every trick and turn. The only other thing I would suggest would be the ability to make the wave pattern screen even larger than what you can adjust it to now; maybe even bigger turntables...I say this because if there was the ability to create and save playlists, there wouldn't be a need for so much screen space to be used for seeing the list. Being that I have a controller, I would like more screen attributed to the turntables and wave pattern. It looks cool and would make it more visually easier to see what you are doing...maybe even a feature that will allow you to blow up the turntables larger and hide the list to only see the turntables on screen and the fader. I'm just throwing ideas out there...once again, just my opinion.