Thanks 340. MEC makes pretty solid stuff for the price imo. The Primaloft Gold they use in that jacket is a cut-staple insulation and will loft and "feel" more like down (same as Primaloft 1, just re-named I am told). The Lost Park uses Climashield, which is a continuous filament--comes out more "quilt-like" and will be bulkier on average than a cut-staple. The benefit is that it tends to hold up better over time (less deterioration of fibers) and won't bunch. Neither is perfect, just different ways to skin the cat. Weight is the damnation of synthetics of course, which is why we have down jackets for 16-18 oz that can do the same thing as synthetics that weight almost twice as much. It's all about the cost:benefit ratio for a given condition.
