DS is a fun and fairly solid scout to use, but don't discount a well rolled Badger or Cryptic Dragon either. Kinda have to just try them on in different scenarios really. A lot of it really does boil down to what you face and how you like to engage. For instance, an NL-Shadow set up for some nice AOE spamming from the back is a lot of fun for some crowd control/team shooting scenarios. Kinda cheesy too when you can flip from ER to a better direct assault perk and pick off targets from corners on some of the Vex inspired Crucible maps. Fast firing scouts with something like Take a Knee in the mix can be good for tying up troublesome pulses/snipers and such. They can be quite versatile... but you need the distance for many of them to really shine. A lot of people just aren't used to staying beyond that 38-ish meter mark though.