I'm going to disagree for a moment here. Remember that the sensor covers an area 17" in diameter. That is an absurdly huge chunk of the board. Sensor can save you so many orders if you can over lap your opponent's camos in its area. Add in that it discovers on a +6 and so will auto pass on Keesan and you don't run the same risk MSV does in trying to force the discover and potentially failing. Keesan herself is actually a pretty neato tool. I know its not directly related to the main focus of the thread but I think people are sleeping on her since the change to KHD. For 30 points you get: Reasonable Gun Fighter with a solid Main Gun, Flash Pulse and Nanopulser to support. Sensor on a WIP 14+ Unit (ie: Will never fail) Triangulated fire with a Viral weapon A marker state Specialist Emergency Regen/Shock Immunity A unit that feasibly achieves 8 Classifieds.
In case you field a few baggage Chaksas (clocking in at 10 points, these guys are the cheapest regular troopers, so chances are pretty high you brought a few of them), you can do a co-ordinated order and move-sense a LOT of space; Chaksas being WIP 13, ths is not far from an auto-succeed.
Aelis Keesan is Definitely getting played in my list for sure. Thanks for your input @TheRedZealot it's much appreciated. I actually didn't realise she can't fail her Sensor check Vs. JSA this is incredibly helpful... Chaksas are a must have too at 10pts regular order, Dodging on 12, Discovering on a 19, Choosing the outcome of Guts, with a Heavy Flamethrower I'll be bringing at least 1 Clipsos as well. those guys are pretty cheap for the utility, trapping and specialist option