So, in my current build, I have outgrown a spring/shock setup and will be going to coilovers. Tera doesn't offer that.
They don't offer coil overs because their bushings can't handle big flex. But, you don't need to take my word for it, you'll find out soon enough for yourself if you live somewhere in the United States that you can flex out your Jeep and on a regular basis.
If you need a good 3-4" lift, Tera is a good choice at a decent price.
If you like stiff coils, yeah, they'll get the job done. I've installed both and it should be noted that if you want 3", you need to get the 2.5" kit and if you want 4", you'll need to get the 3" kit. Also, I would skip the 9550 shocks and get something like a set of Rancho 7000MT's or Bilstein 5100's.