I've had my px5s for about a month and half and I have been really loving it! PROS I love how configurable all the tones and stages are. There is a lot of possibilities!It works great as a midi controller or an external control surface.The sound quality is amazingThe feel of the keys is great.It's lots of fun playing with the different sounds and effects!For sequencing, it works great with midi editors (can simultaneously record from midi channels 1-4 as alternative to phrase record).Love the synth sounds Firmware enhancements I would love in the PX5S keyboard itself Pressing and holding the arpeggio button is a bit too slow if a quick on-the-fly tweak of current appeggio is desired. A faster way to get to that menu would improve the creative flow.When playing and smf file, there is no way to do anything else (change stage, tempo, etc)A midi clock is supported, but unfortunately it does seem like a midi timecode is supported. I use Acid pro and it would help me use the px5s as a master device.Phrase record only plays sounds using zone 1. It would be great to have a way to make it use other zones instead if desired.When playing a phrase, it would be nice it could sync up somehow with the arpeggio being played.When playing a phrase, no midi data is outputted so I cannot record using a midi editorDuring phrase record, the automatic end usually leaves an extra measure which makes looping impossible. Having some way to truncate the end would solve this issue (for example, a way to set number of measures).This part may be out of place, but here are things I wish were in editor: Changing name of phrases, songs, arpeggios seems only possible using px5s knobsNo way to convert phrase files to midi files that I can tellNo way to edit arpeggios in the data editorNo way to convert midi file to song sequencePerhaps I am missing it, but I see no way to set tempo in the data editor for the current stage.Other minor wishes: An Android tablet or phone app to more easily set/edit stage thru USB midi on the fly.Source code to the px5s data editor itself so it can forever evolve and improve by the communityThanks again for releasing this great product!