Dudes, you were right that the difficulty level takes nosedive after Act 1.
I was bitching about having troubles winning Ascension Hall rebel path battle on POTD. Now I'm somewhere in Act 2 (just retrieved Magebane helmet), and most of the fights go on autopilot.
Guess the huge part of that are the OPd as fuck combo abilities from companions and passive bonuses from favour/wrath from certain factions. If only devs could tone it the fuck down a bit, or at least make the combos being available much later in the game, not just 10 minutes after recruiting NPC. Eb and Lantry's ones are an instant win button, at least for 2H pure melee MC.
IMO Tyranny had way better potential than PoE (unique setting/lore, spell crafting, spires, classless system, being thrown straight into the action IWD2-like, cool dialogue options like [glare silently], etc etc), but the low difficulty takes all the fun away. At this point, I don't even give a shit about finding new sigils/accents - I just start the fights with spectral blur on everyone and then just spam the most basic frost/shock CC spells that stuns/slows down every mob, with occasionally throwing some emotion sigil debuffs. Act 1 was superb - even tougher than PoE PotD beginnings. Now every fights is just a chore.
Also, as many pointed out - most of the maps are small as fuck and corridor-like, which doesn't help at all.
It bums me the fuck out when game starts cool, and then it quickly turns into shit/chore