Hapax and MPC (One, Live, X)

As someone considering buying Hapax, how well is it working, at this point, with MPC (One+) on later MPC firmwares? I saw that people here was really fed up with MPC → Some progress on MPC Instrument Definition
(Would love to give it all a try and wrote about that here → Zynthian v5.1 (Vangelis) with Hapax? )