Has anyone bought the car seat they sell at Costco for around $80-90? I'm looking for a seat for when LO is 6 months and older to leave at grandma's house. My Mom called to buy the one they sell at Costco, but I told her to wait until I did a little searching.

Does anyone have this car seat? How do you like it? Would you recommend it? If not, which one did you buy instead. Size isn't a problem, she drives an SUV.

Note: It'll be left at grandma's house and we live abroad so it won't be used often --- but when we do visit, it'll be used a LOT more than the car seat we have at home. We're on the road a lot when we visit my Mom and there's tons of traffic as well.