i wouldnt say its a pleasant sensation but it is no big deal for me. Ive done a number of them on legs, feet, arms, hands and back and i wouldnt hesitate to do it again. the needles are very thin and didnt hurt me at all. I wouldnt put it off because the rules on reimbursement for doctors for emg/ncs is changing in january and it is probably going to be harder to get one done since the doctors reimbursement is suppossed to be reduced by 40%