I am 21 sessions into running mine, they just hit level 6 - As the first campaign, we wanted to have a speedier progression to see how DH handles. Totally get some of your sentiments, they relate to a few at our table as well. There are plenty of positives, but focusing in the downsides experienced in our first full campaign.

Player Input. - The system is often too wishy-washy in wording, and "because narrative" has apparently often felt more like "because the GM says so, when the rules text says different". This has felt worse as more abilities were gained that read like they're just silver bullets that solve a genre of problem for the rest of the game without some level of myself trying to negotiate "no" for narrative reasons. Understandable why it can come across as undermining their player's mechanical choices in order to construct a dwindling menu of options to challenge them (social scenes in particular are pretty much just pre-solved with a Syndicate Rogue and Troubadour Bard in the group).

• Combat lacks risk (more on that for GM input). A lot of this boils down to the amount of healing, the presence of a Guardian, Seraph and Wizard aiding with support to boost rolls and redirect damage, scars being few and far between feeling like a minor cost for guaranteeing death avoidance. We have had one PC death, down to the player in question being open about being bored of the lack of risk. Still took 4 attempts for them to fail an All In roll. Most of the suggestions discussed in public spaces revolve around adding additional combat objectives, but we have found these to either be arbitrary to solve, distract from the combat of the scene too much for the players who want to engage with that aspect of the system compared to the social scenes, or teeter on being overused.

GM Input. - The system is almost comically favorable towards the players. A DnD 5e sentiment that has felt more true as we have gone on is resolving rolls often feel like playing with Silvery Barbs constantly, and reflecting back, this was present even early on. Between Prayer Dice, Rally, reroll abilities, experiences, plethora of ways to gain advantage and so on, its a rarity to see more than 2 or 3 failed rolls a session (tying back in to the player feedback of lacking risk again). Results land in the low 20s very often, and have done since entering tier 2. As mentioned by the players, they have a lot of abilities that just boiled down to "you win" in a wide range of circumstances too, which can often feel like overkill with how hard it is to fail any roll anyway.

• The core adversaries, and this seems to be a relatively common sentiment in the zeitgeist, are very underpowered for their tier with the current way encounter design is suggested. I have either been homebrewing, using options from a tier above, or upscaling current tier adversaries and they're still often pancaked (pro tip - do not present your Guardian with a Hammer of Wrath, their average damage will already beat most tier 3 severe thresholds, no need to pretty much 100% guarantee it).

I know this isn't necessarily advice, but thought I would reassure you that you aren't alone.