Overall, I really like Dome for it’s use of size, and wall-jumps.
Although it isn’t widely played compared to the other maps, I still enjoy it none the less.
There are good and bad reasons why the players view on Dome isn’t as great.
Here are my personal opinions on Dome as of now.
Pros.
-The largest map in the game holding many areas to explore and jump around.
-Many side objectives to build and destroy.
-The side objectives greatly change the combat.
-Well thought out level design. (Beauty wise)
-8v8’s are preferred compared to other maps.
-Many areas where small battles could happen.
-Underground sewer systems to flank are helpful and effective.
-Use of the new ‘Containment Wars’ across the map.
-Honestly fun if both teams are well balanced and understand the map.
Cons.
-Defender Sided
-Small FPS drops
-Removed Long-Jump spot at the First Objective. 
-The First objective is the hardest to beat, see forums.dirtybomb.nexon.net/discussion/20224/idea-dome-first-objective-changes#latest for what should be changed (All changed listed in link I agree with as well)
-Spawns considerably distant.
-Many choke points (Attacking) result in players getting cornered.
-Overall in-game the game ends at the first or second objective.
-TL:DR in the description of the map.
-Hard learning curve for newer players.
Overall Rating: 7/10