I've played for 67 hours and progressed well into the story so hopefully this is helpful. On the positives they have done a good job of making feel part of the GOT universe, the voice acting does often feel like it could be the original cast so enhances the plot. The combat is decent, and the progression is solid, up to a point.
To be clear this is a SOLO game, there are single boss, kill and done "dungeons" that are done on a 4 party random matchmaking basis. Although after the first one people will just decline group if anyone in group is close to minimum requirements. There's little skill or strategy to the bosses just usual stay out of the fire.
The negatives, there are lots of different currencies clearly designed to confuse, lots of different materials to gather which only seem to serve the purpose of filling inventory - thus encouraging you to buy the monthly sub that doubles your inventory slots. That said with the monthly sub I had zero inventory issues, and that is the only additional money I spent. I purchased a single month sub as I wanted to see if the game had longevity - it doesn't - before I committed more cash.
It is wise to spend the currencies though, for example for 30 iron coins you can unlock free fast travel which saves you enormous amounts of time and copper in travelling. You can get golden dragons from just clicking through the tutorial text, enough to easily unlock several inventory slot enhancements. You get enough golden dragons from regular quests to purchase daily 20k copper which helps a lot.
Other negatives, there are LOTS of clicks here click there - collect this collect that in the UI that get tiresome - I imagine for some it would be confusing, indeed watching some YouTube videos it's clear people just ignore the red "click me" buttons and thus struggle to gear up, as the red notifications are showing you where you can collect more rewards.
The game plays rather like the Harry Potter Hogwarts Legacy game in that there are lots of places to explore side quests, and puzzles, but it gets a fairly repetitive after a while. There are micro transactions but I didn't feel they would provide any real benefits as the currency you buy can be spent on random chests which are effectively loot boxes, no guarantee of any upgrades. Mostly they would go on cosmetics and since it's a solo game there is no other players to beat so there is no "winning" and thus no pay-2-win. There is a leader board but you'd need to be an insecure young adult desperately needing to prove something to him/herself to think that mattered.
The biggest flaw was that after you get a reasonable way into the game, in my case after reaching half way through Oldtown, the momentum requirements went from around 32k to 49k. Which meant I went from progressing smoothly in the game to hitting a wall and needing to tediously repeat content again and again and again. I wondered around the rest of the Reach area unlocking all the puzzle historic sites, and fast travel points. Yet still only improved slightly.
Doing the bear repetitively got me some gear upgrades but it was clear it was a needless grind wall and that just soured me on the game. I was being pushed towards long waits between content and well if you spend cash then you can skip that wait. For a solo game this is just not on. Why gate content on time for a solo game, it doesn't impact anyone else the rate I progress at (other than the meaningless "leader" board) so why should it matter.
Overall it's a decent game if you are a fan of GoT then and work on the basis that £1/hr makes a game worthwhile then I got 67 hours from my £31 purchase so at 50p/hr that's sufficient value for money. I enjoyed playing but ultimately became extremely frustrated by the needless currencies, click here click there UI clicking for no good reason. ie: if I complete a quest give me the reward don't have a 3 menu click to claim the reward.
If you are a completionist then avoid you'll only be extremely frustrated. As a solo game it's lost it's way it's trying to be an online co-op and trying to suck you into micro transactions with needless click here click there. Then locking you out of content some 50+ hours in forcing you to repetitively grind the same thing for random rewards that don't help then preventing you trying again for 3 hours just doesn't make sense in a solo game and as such I cannot recommend this.
If it had genuine co-op/mmo play I could understand the grind/time locks but for a solo game it's just needless frustration. Overall thumbs down for me I'm afraid, it's got a lot to recommend but they have ruined it with the issues I've mentioned.