Baby hammocks for airplane seats.

I found this cool idea for parents who travel with a baby via airplane. The flyebaby hammock is a stretchy piece of fabric that somehow has clips that you can put around the tray table in front of you and your baby can sit facing you while you sit comfortably in your seat on an airplane. The cost is ok around 45 dollars I'm curious to try one out. My concern would be what if you have a large baby like I do or if the person in front of your reclines their chair...how does that affect the hammock? Many people suggest that any child that still rides in a car seat should be put in a car seat while on a plane. The problem with that is paying for an entire extra seat just to put your babies car seat on. Most airplanes I've ridden in only have lap belts for adults. I really don't think it's safe to try and attach a full size carry on car seat with just one lap belt. Not to mention who's going to watch your baby in the car seat if you have to get up to go to the bathroom on the plane if you are an adult flying alone with your baby? Do you feel like bringing the car seat with you to the bathroom?!? Plane seats are small enough just for an adult to sit in I would feel so squished in if I had a car seat, myself and my husband in one row. But if you do chose to carry on your car seat to put your baby in during the flight you must check with an attendant at the gate before your flight and ask if they have an extra seat available next to you so you can place your car seat on it. You can call the airline ahead of time to make sure this is possible and skip the last minute stress of what happens if you cant bring it on the plane.Back to the baby hammock, I would love to try this and see how effective it appears to be. Also the hammock turns into a make shift high chair of sorts. If your baby uses a high chair and you don't want to pack a bumbo or other chair in your luggage use this. The hammock fits over the back rest of a regular kitchen chair and the straps can be configured to hold your baby upright to the chair so they don't fall over. It seems like an easy product to pack in your carry on and is worth the money.