So HS used to be my go to career, repositioning constantly, and having to be aware of terrain, but with a high skill high reward mechanic involving his shots was a lot of fun. Currently I think without the proper team and set up (i.e very specific builds using hunter / prowl / pot/ shrapnel ect) for boss burst damage, he really falls by the wayside for a number of reasons.
The biggest issue is that Prowl CD is wayyyyy too long for what it provides, the damage increase is negligible for most of his ranged weapon options (by comparison) and also generally requires more skill to make into any sort of significant damage. (His boss damage against a troll may be passible because of easy hitbox, but spawns and their tiny butthole heads and quick movements, make him drop to generally lower tier boss damage, for example)
This makes prowl turn into a defensive career most of the time due to huntsman’s comparably bad melee, spear and shield gave him a nice safe option, but with the lack of other careers melee killing prowess he somewhat suffers in that regard, especially when WS / BH / Sienna / RV / Engi can all sort of run around blasting stuff, while HS is generally forced to stand still and make precise shots or melee most of the time.
Another big issue with HS, is that a lot of his good talents are stacked on similar rows, Making it Look Easy / Burst of Enthusiams. Or Make Em Bleed / One in the Eye. This allows him to be pretty competitive on chaos wastes when you are capable of stacking these talents, and lets him actually do some reasonable damage outside of a 5-6 part set up but for adventure mode it feels pretty awful.
Longbow - The go to weapon, which feels a bit lackluster now against bigger threats (multiple headshots + prowl req to kill 1 CW on Cata)
Handgun - Slow reload / limited ammo supply, forces you into Thrill of the Hunt, which takes away from 2 of your best talent options
Repeater Handgun - Decent damage, works for some builds, ok damage overall but bad synergy with headshot talents due to weapon spread
Blunderbuss - Literal Meme cannon for Meme Builds, Bluntsman is dead dont @Me
TL;DR, I put about 200 Kruber levels into just HS, and dont really enjoy him that much anymore, he is fun after you scale up a bit in Chaos Wastes but early game is awful, multiple headshots to kill a single special with Longbow, almost 0 stagger, ect, makes for a very unfun early game, while potentially giving him a strong end game, and as for Adventure Mode, he just feels dated by comparison, High Skill, Mediocre Reward, effort =/= reward ect.