I'm sure Dr. Robin does a wonderful job, but I've done it numerous times myself after reading Taffy's instructions and it's really quite simple. It may sound a little complicated because the description is very thorough, but when you actually look at the pieces, it's pretty obvious. The only complicated part for me was finding the right elastic. In just the past few weeks I've replaced the arm on a poor, amputee Felicity and tightened the stringing on a Berenguer Classmates. It's a great skill to have!