I was on the fence between a Mtn Hardware compressor PL + the new Stoic Luft, so I checked them both out.
They are both about the same light weight, similar synthetic insulation materials, low-loft, highly compressible, highly wind resistant, exterior water-repelling finish, packable into own pocket (Mtn Hardware zips closed, however, but packs slightly larger) + athletic fit.
I found the Compressor "shell" to be about as durable feeling as tissue paper + in the "Grill" color is as shiny as a black Hefty trash bag (seriously). The Compressor does have velcro cuffs + a collar that can be tightened, but those are about the only advantages (possibly slightly warmer).
The Luft sweater exterior DWR finish is much more of a matte, with no more sheen than can be expected from a Nylon product. It also seems more durable - not thornproof, but reasonably durable. The zippers seem a bit filmsy, but get the job done. The interesting stitching serves the jacket well by keeping its "guts" from moving about + the shell from billowing out. One huge advantage is the Luft has internal elastic cuffs - basically powder skirts for your wrists that stay hidden making a jacket-glove- jacket scenario when suited out.
I am a 5'11" 165 athletic guy + the medium fits great and compacts to the size of a liter nalgene bottle... with no internal zipper to zip it closed.
Bottom line, the Luft is a warm, lightweight, athletic fitting powerhouse that keeps pace with the Mtn Hardware Compressor PL, if not surpasses it.