Not sure if this is still being worked on but some feedback:
1) Save/Load buttons don't work. Played for an hour, hit save, came back and lost all that progress.
2) Would really prefer a desktop version for playing offline and having local saves.
3) Takes a long time to reach any content. Lots of deaths where it feels like I'm not making progress at all.
4) For us more casual players, a way to speed up progression would be great.
5) Having more permanent progression outside of skill multipliers would be really good.