The OP makes some valid points. I like the game. My first play-through lasted 101 hours, and my PC ended just short of Level 25. I started a second play-through (after 7 scrapped Inquisitors that never made it past Haven), and am about to experience the transition to Skyhold. I nearly quit, out of boredom, a few hours into the Hinterlands. I stuck it out, though, and started getting into my new character more. I'm confident I'll at least complete his journey.
I'm playing on PS4, and this game is the buggiest game I've ever played. I routinely have to close out the application and relaunch the game. Sound disappears and then lags every time I fast-travel. Conversations freeze. Areas load devoid animal life, and twice devoid of people and a few topographical features. The game regularly crashes inexplicably. Crafting gets buggy regularly. Sometimes my character decides s/he is in combat and can't be convinced otherwise, locking out non-combat functionality. I could go on, but you get the point. It hasn't stopped me from enjoying the game, but it has certainly diminished my enjoyment.
The various regions were fun, for a time, but I could definitely be better incentivized to spend my time in them. I'm not sure if OCD-like behavior will compel me to fully complete them in future play-throughs. I'm thinking not.
The gameplay and graphics are still mediocre, as they've been in previous DA games. I'm not sure why they can't be better. Do we really have to choose between epic story or epic gameplay and visuals? Why can't we have both? Navigating the environments in this game has the feel of old school PC games. It's pretty bad. Combat is what it is. Far better than DAO, for me, but still pretty stale.
The game is fun, but I don't find myself loving it. I like it more than DA2, due to its variety, but less than DAO, despite its technical superiority. I just really enjoyed the story of DAO, I guess. The ending of ME3 was crushing, simply because I love that series so very much. I still do, and made peace with the travesty in order to keep loving it. I bring that up as a comparison. I don't find myself loving DA the same way. I love the world. I've read and enjoyed all of the novels. (The Calling is an incredible book, in my opinion, and I was surprised by how much I enjoyed Last Flight. It was very good.) Maybe the fact that these games are mostly stand-alone stories prevents the traction I found with Mass Effect. I'm not sure.
Oh, well. It's late and I'm rambling a bit.
TLDR-- I like this game, and the series as a whole, but I'm not sure they have yet established any sort of identity for this series. I wish they'd perfect their vision, because they have created a very engaging setting.