I made the mistake of saying the game was trying to please everyone with tactical and action combat a while ago and that it doesn't work but that was based on the gameplay videos I saw.
Since playing it, my other initial suspicions were right about the game playing better than it looks and it does. I said it doesn't work with action combat but that was before I discovered the block-slash ability which is the equivalent of having an actual block/parry for the warrior, the only difference here in Inquisition compared to other action-RPG's is that you get to map it to whatever button you want and it's optional and there's also a roll ability that works as it would in games like Dark Souls, Witcher etc....
Having discovered these abilities, the game feels very competent in its melee combat. I've played enough of the mage and rogue to know that they too have their own counter moves and defensive moves which is what DA2 lacked when it stepped into action territory. Well, DA2 did have some abilities for this stuff but they weren't as controllable as what you've got in Inquisition where you get to control the mage's teleportation or the warrior's parry without delay.
The tactical camera and party control is just a plus and I think Bioware did great with the combat this time around. When you're not in tactical camera, the game feels like an action-RPG but then in tactical camera, it takes on a new gist very efficiently if you ask me.
Oh and finally, rogues aren't overpowered anymore as they were in DA2 with their massive passive critical abilities. The warrior finally feels stronger, as it should be with its defensive abilities and the guard mechanic. I never understood the logic behind a rogue who uses daggers and light armor somehow coming out better than a warrior who uses heavy armor and swords in DA2 but thankfully that's not replicated in Inquisition and every class feels far more balanced with the warrior feeling naturally more stronger than the rogue. The mage feels powerful with a variety of spells to cast as usual but is now more easily killed, again, that's how it should be in a party based game where warriors are traditionally the tanks.