Baby Trend Jogger Travel System.....if anyone owns it..... just a little question....?

I will be honest - I don't have the jogger type stroller but I do have a safety first travel system and I hate it! Safety 1st products are bigger and bulkier than any other stroller or carseat out there. They do not fit in the basket part of shopping carts, nor do they fit in other strollers such as Graco or Evenflo. They are very heavy carseats and I despise the fact that I am struggling to carry my 4 month old daughter from the car to our apartment (up one flight of stairs) because with her in the carrier it is over 20 lbs hanging off my arm. I also HATE the latching system on my safety 1st carseat. You have to put the two pieces together like a puzzle before they fit into the one piece that goes between the legs and if your baby is squirming that is next to impossible. All in all, I am very dissatisfied with my purchase and will be getting rid of it as soon as my daughter has outgrown it and will never buy Safety 1st again.