To the OP...
Our experience with Cosco manufactured stuff is that it does not truly compare in the end to its competitors (Britax, Chicco, Graco, etc.) I would never say that it is a fact, just experience. The Techs have a lot more to say on that.
I believe I only saw ONE person say, however, that "a carseat is safe if it is installed, adjusted, maintained, and used properly every single time it is used."
Personally, I am a HUGE fan of the large and bulky strollers/travel systems, I couldn't tell you why exactly.
Money should be taken into consideration. Often Cosco stuff is less expensive than, say, Graco or Chicco stuff. I feel some members forget about this however unfortunate aspect of life - some members are lucky enough not to be overly concerned! If money is a concern for you, don't stress out thinking you HAVE to get this certain travel system, etc.
Get the one you feel is absolute best for you in the end - your baby truly won't care either way!
Sorry I couldn't tell you much about the system in question.
Not trying to step on toes.