We're traveling to MN next month, and I'm planning to bring our convertible car seat with us - to check at the gate - which sounds like a pain, but the thought of renting one that I know nothing about makes me uncomfortable.
But I'm curious...If you've traveled by air with LO, did you bring their car seat with? Or rent one at your destination? What have been your reasons and experiences?
ETA: Also, if you did bring your own seat, did you buy one of those roller bags to put it in? Or use something else?