NOTE: This is all based on opinions and may not reflect your experience with it.
MOBS:
OVERALL:
Overall, I am extremely disappointed with the new mobs. I was expecting something fresh and new but when I was venturing into the Prestige mission... I was gravely disappointed. Having an extremely weak mob and just having them swarm you is not difficulty. All of them are extremely easy to dodge and they take absolutely no work what-so-ever to defeat them. Grave Scarab dies in 2 hits from AP, Dust Bunnies have horrible aim (they all do) and the Jelly Drops are a complete joke. I suggest adding either more vitality or adjust some changes:
Dust Bunnies should have their Attack Speed increased by about 20%.
Grave Scarabs should utilize their digging ability. Kinda like Wolvers do or something more unique.
Jelly Drops should not be able to take damage while they are in their "attack" form.
Honestly, Sub-Mobs are somewhat cool until you get to the fact that they're cannon fodder. Every Single One of Them.
Alpha-Versions of them would also be cool.
USER INTERFACE:
OVERALL:
I love yet hate the UI currently. It's extremely cool, I promise you and I love every bit of it! Currently my only complaint is that I cannot see my Energy AT ALL. This would be a big pain if I ever planned on crafting something or even if I was doing a run. Removing it was a huge mistake in my opinion. Same applies for Crowns. I seriously love everything else except for another small thing: The Weapon Wheel. Often times whenever I was switching my weapon it'd get in my Field of View and slightly block anything from the right-side of my character. I know it was for a blink second but it gets seriously annoying. I suggest moving it to the top left just under the "KNIGHT" image.
The "damage" is really cool. I noticed that rather than having a "weakness" attribute, you used a form of "Damage" instead. it's extremely cool and I like it.
BUGS:
There were a few bugs I encountered:
Changing the Instance resulted in the game crashing.
Alt-Tabbing resulted in the "Knight" picture rendering to a texture palette of a Gremlin Mender.
Grave scarabs are everywhere, TOO MANY OF THEM.
CLOSING:
Honestly? Extremely disappointed with what was shown to me in just an hour. I enjoyed it for about 3 minutes thinking "this is cool" only to be disappointed with the fact that most of the new sub-mobs are repetitive. I seriously hope your content update this month is going to be more than just Pets and Sub-Mobs because honestly, this does not seem like something I'd enjoy waiting two months for. The UI is nice and all but there's still nothing supporting the game at all. Everyone is still just going to run Firestorm Citadel just with a new UI and maybe some new sub-mobs if you decide to add them to it.
one thing that REALLY bugs me is that you don't get to constantly see how much money you actually have. the next is that things are all moved from their original spot, which, is annoying when people have gotten used to the typical quick reactions of the old UI