Very easy, very good experience. Within a few minutes I had found the repair part I needed, ordered it, paid for it, and was done. Maybe six minutes total.
Blower wheel 13 inchx13 inchx1 inch fd/f
Blower wheel 13 inchx13 inchx1 inch fd/fs 350, ufd/ufs350, bw3501, bw4002, ct4601, ctv21 z4c02bl
Buy this part and as many parts as you like and pay only $9.99 shipping, within the Contiguous United States.