No blisters or discomfort. Ive got my spices divided into the "baking" spices & the "savory" ones & its just about the best things Ive ever done for myself aside switching to an auto-immune protocol diet. Although the price is very over priced and you can make these yourself, I took the easy way out and purchased them premade. I bought these for my husband he loves them! The quality is terrible. The assembly was easy but some of the screws provided did not have a good fit with any wrench or socket that I had. Sound quality is great, haven’t used it for more than a few hours at a time but I did wind up giving this same model as a gift and they seemed pleased with it. Shoes dont hold up. I have a full sized keyboard and the pad sits underneath and extends at least 25cm to givrplanty of room for the mouse. Here are a couple of things that caused me some extra time, hope this helps someone.