First things ahead: i was unable to finish the MainQuest reason will follow. Additionally this was the first time, i have to force to play the game instead of playing for fun.
This is mainly caused by the current skill-system. I'am missing the reward after a good fight. DOS doesn't offer progression or loot.
At least some material to heal wounds should be available to the player. It's simply boring to return to Town after the fight (not to say, that mostly the gold-drop don't fit the HealPotion cost)
After fighting a the several fights (completly cleared the path till lighthouse + the new cavern under the city) my characters reached LVL 4 and was unable to handle the group north of ceicil (entrance to the tunnel). Additinaly i was unable to spend the "Points" cause of "next level" need 3 Points. This is simply frustrating.
Some more irritating to me, was the full "Open locked doors"-Thing.
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[*]There is "skillbook" to unlock doors who need lvl of "way of ranger". Additionally there is Skill to level. If i have spend all points to get the unlock ability, (at least lvl 4) 1/3 of the doors in ceicel are unable to cracked.
[*]I don't know what kind of magical-wood are used to build doors in DOS, but it hold very long to fire, direct brute force and even all kind of weapons ...
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After all, lockpicking/open doors need a tweek

Make progression feelable doesn't mean "slow things down", the changes has to be noticeable