This product has been a life saver for me.Though the product is not made of high quality material, but it does the job very very well. I was staying in a remote hotel during one my trip when i found the tire was punctured. There was no tire repair shop in the vicinity. I would have been in a very bad situation if i did not have this product with me. The tire gets fully inflated in about 15 minutes. It does vibrate and makes a bit of sound, but that's fine. The power cable and air pipe could have been slightly longer. For this price it is totally worth.