Very easy. Your website easy to find (appliance repair). Video very helpful and exact. Ordered part and received in a matter of few days. Had previously removed defective part per your memo.
Opened shipping container, opened plastic envelope and removed replacement part, compared with old (was exact) replaced to blender, started blender to seat new part. Total time 10 minutes.
Also the part was on sale at 1/2 price + shipping = $10.00. What a deal and couldn't be more satisfied from start to finish. Would have to rate the experience A+++++++