Now, post ST, even though you get a number of other benefits along with radar dep (sensor range, TIG, retain, some decay), people are suddenly questioning its value. 16 points will get you 100% RD, which is actually better than it was pre-ST, and that is less than 20% of your total skill points.
Consider seismic, another module that was a go-to for many, pre-ST. If you get full RD, it only takes 3 more points to get 200m seismic, for a total of 19 points (12 points to get full seismic if you, for some reason, completely avoid all RD nodes)
I'm not sure why, but now the sensor tree is viewed with considerable distaste by many. An odd turnaround.
I think it has its value and uses, I spec into it on many of my mechs, though by no means all.
Edit for typos and clarity.
Edited by Insanity09, 06 July 2017 - 09:33 AM.