I am guessing that if you play DAI on a console, you have received most of what you expected, and have few mistakes, besides a few bugs. However, those of us that have followed Bioware through the past several decades, and expected a certain type of game, especially after the company promised us, that the game was being made for the PC primarily, by PC gamers, have been very disappointed. To anyone that has played PC games before, it became very evident, in the first few minutes of play, that this game was not created with PC gamers in mind, except as an afterthought. Simple little things that worked flawlessly in Dragon Age Origins, and even in DA2, now became a pain in the @$$ to make function, and in some cases, were not present at all. Movement is a big complaint, and that has been covered extensively in other threads. Another is Inventory. While the DAI system of inventory may be fine when using a console controller, for those of us on a PC, ignores the capabilities of our preferred mode of playing.
And that is just the technical flaws.
DAI is a barely veiled illusion of what a CRPG used to be. The character class choices have been pared down to a handful of choices, that will lead to nothing but cookie cutter clones. Prior Bioware CRPGs in this genre, like NWN, BG, and DO gave a player dozens of choices. And ...ability scores. The player no longer has any choice in placing ability scores to where they would like to customize their character. Basically, the character no longer belongs to the player...it is simply a role in the movie that is DAI, that follows a very strict script, with no chance to show any hint of individuality, except the cosmetic visuals you can make at creation. You may as well be playing The Witcher.
Combat is also a huge disappointment. Player control over your party is extremely difficult, to the point where many just ignore it, and put the game on the EASY setting so they can get through it. And combat graphics with party members jumping around like fleas, looks like some bad arcade fight game from the 1980's-90's. DAO combat looked much more realistic, and when Bioware went away from that in DA2, they received many complaints. Bioware promised they were returning back to their roots, but this is another example where it appears they lied, or were not able to fulfill their promise.
There are things to like in DAI. I think everyone can agree it is a beautiful world. The problem of recycling areas in DA2 has been addressed, and then some.
But, for players that prefer to play on a PC, because they want the numerous options, and ability to control their character in a way, that a console could never allow, this feels like a cheap substitute for what we were promised, and for what we have come to expect. A great game for the PC, would have been a great game for the consoles...however, the opposite is rarely true.