Here are my initial impressions of the speakers:
The first thing that jumped out at me upon listening for the first time in my room is the highs. The highs these speakers put out is just leaps and bounds better than the Epos. The amount of detail they put out is just astounding to me. I first realized the limits of the Epos upon hearing some ABBA LPs I have. It felt as if they were trying to put output more detail out of the song but just couldn't. The Dali put out these details without breaking a sweat.
The midrange on the other hand is very on par with the Epos. I feel the ribbon tweeter hasn't fully broken in yet as the very high frequencies are being over emphasized a bit. Since I have heard these speakers at a shop I know that what they are doing right now is not normal. But other than that the midrange is great while a bit laid back when compared to the Epos.
On the low end front while they hit a little lower than the Epos, it still leaves something to be desired when you compare the size of the two. But I think this is a problem with the room as right behind the curtain is a window which I don't think is helping much. I will be getting some bass traps to put behind the curtain right behind the speaker. Since I listen at nearfield I don't have to worry much about rear reflection points so I am certain that with some strategically placed acoustic panels things will improve a lot.
Placement wise they are extremely easy to place. Pointed straight ahead is best as it makes the soundstage huge and it's what Dali recommends. While the Epos required some toe-in to disappear in the room, the Dali achieved this very easily. Also these fare a lot better with rock than the Epos did. The drivers on the Ikon are definitely faster and have no trouble keeping up with rock like Muse and Queen of the Stone Age. I have yet to listen to the other tracks I use to test speakers but I doubt they will have a problem shining. Build quality is great and cabinet feels very sturdy. Speakers are of good weight (20lbs each) and I can't find any imperfections on the finish. But all in all I am extremely happy with my purchase especially at the price I got them at which makes them an absolute steal. Although I wish they hit lower than they do all in all I am very happy with the upgrade.
On a side note I though my wife was going to be pissed as they are a lot bigger than the Epos but she said the system now looks a lot better. She even said that they would look great in the living room where the Mirage are.

I also have another upgrade coming on Thursday in the form of an Arcam A80 integrated so I will post later if it ends up making a difference.