Thanks for sharing this. The process does sound straight forward. It seems that you still retained some shares. Did you exercise with the intention of selling a portion on the secondary market?
I used some of my savings and a cash bonus I got at work to exercise some of my options. I held on to that stock for a year. The next year I sold a portion of that stock in the transaction described above. I used the proceeds from the sale to replenish my savings, which had taken a small hit due to the AMT from the previous tax year.