Great car seat cover. I use it with my Britax car seat. It makes it really easy to carry the car seat, and put it in the stroller while Baby is protected.
This cover works perfectly with my Baby Trend car seat. We just got back from a stroll in the rain (the car seat is used on top of the Baby Trend Snap 'n' Go stroller) and the cover was great. I also use the cover on cool days when it's not raining to keep baby sheltered from the rain.