Can't say I know how it felt when it was being inserted, as I was still asleep from the surgery. But it was not uncomfortable while it was in and being used, nor was it uncomfortable when they were taking it out.

If I were to imagine what it felt like going in, well, it's probably quite similar to when the doctor puts the endoscope down your nose.

Dx 2014Jan29 (42 yr old otherwise fit nonsmoker)
SCC tongue stage III T3N0M0
subtotal glossectomy, partial neck dissection, RFFF, trach, NG tube 2014Feb25 16 days in hospital
RAD 25 zaps 2014May5-2014Jun9
Back to work, paddling & hiking shortly afterwards