I got two of these seats for my sons at about 3 months old and they are very easy to put together. The seat covers are modern and reversible with two different patterns. The seat covers are comfortable but they do stain kind of easy but its nothing a washing machine can’t handle. The seat back is easily adjustable and for my sons at 3 months old they had no problems sitting in these seats. The seat harness is easy to use and my sons never minded being strapped into the chairs. The tray snaps on very easy and has plenty of slots to fit your children when they’re small and as they get much older. The tray also has a neat, firm plastic sheet you can insert on the top of the tray and it has a fun alphabet on one side with numbers on the other, my sons liked to point at the numbers and letters. These chairs do come with some hardware to strap them onto a regular chair and use them as high chairs but we never used them because we didn’t feel like it would be too sturdy on top of our leather chairs. Until my sons got big enough for high chairs we used these all the time for feeding and they where great. We still too this day (14 months old) use them when we travel and the boys love to sit in them. We also take them to the park sometimes and let the boys sit in them and eat their snacks while enjoying the beautiful weather outside. Now that my sons are much bigger we have to be careful because we leave the chairs out and they like to go stand up in them facing backwards which worries about them tipping over. We haven’t had any issues with them standing on them but we are starting to put them away so we don’t have to worry. This seats are a great find in my opinion, they last along time and the price is right for the quality. Buy On Amazon.com The First Years Newborn-to-Toddler Reclining Feeding Seat