Update after moderate use: Finding them very comfortable. I've been taking to watching my children's sports practices and they are much more comfortable and convenient than the fold up chairs available to sit in (as well as a guarantied seat). They setup and breakdown in 45 seconds and are nice and easy to carry into a crowded area. I think they could be very comfortable for multiple hours. Additionally, the materials are holding up very well.I recommend these to anyone who's looking for compact portable chairs.--------------------------------------------------------------------------Another great Moonlence product! I have one of their portable side tables and it's been great for camping and taking to beaches or swimming holes. I've been looking at different compact chairs to add to our outdoor gear with a primary focus on portability so we can get away from the big bulky foldup chairs that take a lot of space and not fun to carry far. I was hoping to get something very comfortable, but knew that's harder to get in a small package and was willing to sacrifice some comfort for portability. So that being said, these chairs were an excellent choice.I would have no problem carrying these on a 5 mile hike or down a steep trail to a swimming hole. They save a lot of space for camping and make it easy to pack more stuff and not be overloaded in the car. They can fit in a backpack. Keyword: PORTABILITY.Durability, these seem very sturdy. The material seems very strong and reinforced in the spots that take the most stress. The metal frame is very sturdy as well.Comfort wise they aren't a cushioned recliner, but they will get the job done around a campfire or at the lake or for enjoying a nice view for an hour or so. I'm 5'9" 175lbs and I'd say someone up to 6' with an average frame would have similar experience. Bigger than that could be less comfortable.Lastly, it's quick and easy to put together and take apart. Shouldn't take more than a minute or 2 for anyone without mobility or dexterity issues.