Having used my Active target daily for three weeks ....A few thoughts. First I am not comparing AT to Live Scope. Buddy has Live Scope and from the little I have seen, not a lot of difference.
My bow setup is a HDS8 Gen 2 non touch with the screen 75% Navionics mapping and 25% 2D sonar, transducer on trolling motor. LT with HDS Live9 setn100% to Active Target. LT transducer mounted on trolling motor shaft. Forward Range 80', manual contrast 78%. Very easy to see fish, were fish are in water column and relating to cover, bait balls and brush pile shape and size on Forward mode. This mode is a vertical drop-shot and spoon fishing dream.
Don't really care for Down mode.
My buddy with the Livescope turned me on to Scout mode searching for schooling fish. Down mode will do the same thing (kind of), however there is a wider field on Scout mode. Now you can not tell fish depth in water column, but I am looking for the school. Have had success seeing fish on screen and throwing Wapper Plopper over them. When using scout mode (Forward mode to some extent) one must train the brain to see fish, at what degree on the scope are the fish and what direction is the transducer pointing in order to know where to throw.
Might be a negative to some, however when trolling motor is on spot-lock there is side to side viewing as the trolling motor turns to spot-lock.
The greatest negative to AT is there are more fish in the lake than one thinks. Many,many more. Finding the fish does NOT mean they are going to bite. It is super frustrating to see these fish and not get a bite. Drop a lure and see the fish swim to the lure and not take it will make you pull you hair out if you have any, I don't. I become frozen in what to throw at them. Looking at AT and 2D at same time one must adjust their brain as on 2D the right side of the screen is what's under the transducer and AT the left side of the screen is what's under the transducer. All in all doesn't take long to train your brain.
Bottom line is, I am very pleased that I bought AT and will only get better at using it with time. I would recommend that if finances allow that AT or Livescope is a good purchase.