Pretty comfortable in either sitting or reclining positions. Not the easiest thing to lean it back (you have to push on the handles or the footrest reasonably hard), and I often have to shift a little farther back to keep the chair from tilting up (just once when I first recline). I have them on my front porch and regularly people passing by comment on how comfortable I look. Not my favorite 0 gravity chairs I've ever tried, but pretty happy for the price.
The metal and fabric components seem pretty sturdy, but I'm not expecting these to last forever since the plastic components that the metal poles slide through seem a little lightweight/thin.
The box arrived very damaged (so much so that the delivery man asked for our information in case we needed to make a damages claim), but the chairs inside were just fine.