Mine arrived yesterday, and I tried to assemble them today.  I was able to connect some parts with great difficulty, then on Step 3 ran into an insurmountable block.  Even if I could get 3 done, step 4 would be impossible.  Step 5 connects the seat to the base with only 4 screws, which I think is cheap IF I was able to get that far.  Very dissatisfied with this purchase.