@Secret_TunnelI think I got a little lucky with Grimstone because apparently I ended up with some of the strongest characters. Bull (a good warrior type), Maria (a solid ranger), and especially Umbra (who by all accounts is the most versatile and useful possible member). Doc is less consistent but helped round out the party and give a second healer. At the beginning, I decided the ethically correct thing to do was to save the first four people I came across, rather than overthink their backstories and decide on who lives and dies based on that. Also, I love dogs but c'mon, I'm not saving a dog over a person (because I'm not a mid-20s misanthrope who lives on Reddit).
Grimstone has a few difficulty spikes, particularly in the second half, but I didn't find that I necessarily needed to grind that much. Typically I'd leave my teeth in the bank then just attempt a trek. Most of the time I'd make it, but if not, the Dragon Quest-ian revival system ensured I'd still make some steady progress (EXP, sometimes new items, sometimes more money than what I'd previously had) even when I got kicked back to the last town. Banking teeth pays off really well (some percentage per fight, I believe) so I'd definitely recommend it.
The game has a pretty good number of little secrets and extra scenes, which is good considering the genre. They didn't skimp on the content even though it's just one of 50. Poking around the world map is often worth it. Make sure your TV is on Game Mode too. Hitting the red area is way better than the orange, which seems to miss half the time.