Just like all the rest of the reviews, I too feel that it’s extremely knobby (I believe a fully padded cover would help considerably & I plan on purchasing a patio lounge cushion)
And would be Much to much for someone w a sensitive back or neck. I have several pinched nerves in my neck and unfortunately without a pillow etc it’s much too aggressive for that purpose. 
However I do love that even w the poorly made instructions I was able to put it together myself if 20minutes, and it looks great in the room. I’m very pleased with what it does for the price, it just tries to do it... to well LOL