Cart Seat Covers

Has anyone used either of these that could tell me pros and cons? My daughter is 7 months and still a barely supported sitter. I like how the Summer Infant Cover has a cushion to give a little extra support. And a place in front for a phone and 2 toys. But I don’t like the review I read about a “plastic feel”. The cushion isn’t soft what-so-ever.

The Buggy Bagg doesn’t have as much back support but it’s higher quality with a big pillow in front that can be removed. And some zipping compartment in back for extra things. It’s missing a place for toys or a phone though.

I’m trying to figure out what’s really important and not. I’m a new mom and just want to pick the right seat cover.