Very nice and feel sturdy.  There's some imperfections in manufacturing that make the instructions difficult to follow as printed.  So we figured out the following trick that is helpful:  Do step 3 first, then steps 1 and 2.  Do steps 1 and 2 without actually putting the bolts in, and don't assemble the legs with the bolts until the leg structure is attached to the base of the seat.  It's the only way to get the flexibility you need to get all bolts into the seat.