Hi,
It’s a bit early to answer this. But, I used LPP3 as a chord generator (Hapax is better), CC sequencer through midihub (Hapax will be more powerfull when the midi FX “Note to CC” will be implemented, as it have more tracks and more sequencing features) and master keyboard (Hapax is not as good because pads don’t have aftertouch). This final point isn’t a problem as I purchased an AK which is now my master keyboard (with aftertouch).
When you add the midi FX, the algos, the play modes, tracks up to 32 bars, 96 midi channels on output, the instrument definitions, the automations… You can definitely had something to your song the LPP3 can’t.
I think Oxy one and deluge can be also very good options but I choose the Hapax as I know Squarp team will make it even better.