As a dedicated miner on my alt character, I found mining progression to be quite balanced right now. I started from iron hammer -> Titanium -> and now starting to use Gem hammer (the heavy one) at level 25. I skipped some hammer tier because I don’t think they are worth it. They swing faster but does lower damage hence I don’t think I’m getting my investment back in time as they broke faster. Just to clarify things, I have 0 sp in crafting. I buy all that I need and I sell all that I got so I had a clearer view that those hammer that swings faster is greatly underpowered in terms of ROI.
Now, I don’t know what is the standard of good income in boundless but at level 25, I have 70,000 coins and happily created my first house by just buying everything I need 
(just a shame though that I just need to buy the chisels then I’m no different than any builder character). Lots of unfortunate events (deaths) are accounted for for that income so if I’m more careful, it could be better.
Other way to probably make my income higher is to stay at lower tier tools but this is really a battle between “higher income but invests more time mining” vs “lower income for lesser time mining”. This is true because the price hop between tier tool is quite large but I think it’s fine.
Now, onto the topic of hunter side. I think they are fine right now but will be more imbalanced as more mobs will spawn. Even now, I still think mining is more viable than hunting mobs. Other factors, I don’t think a character specializing in mining should be able to just easily kill mobs. I was a pure miner but during The Great Hunt, a level turned me to a good hunter suddenly wielding gold slingbow from stone with max power. Feels weird like I had an identity crisis. (Shameless plug again: Progression based on what you actually do. I really hope this will be a thing before 1.0 hit 
) Another one, mobs needs to be more creative and harder and something in hunter skill tree will make them easier (like dodge, grappling mobs, etc.). Currently, if you have decent “A” & “D” sidesteps, you will be fine in a battle. Giving them high hp and insane damage feels like a cheap way to make them “harder”. Good to know that we’ll be having more mobs planned to make hunting better 