I like its ease of "job but I remain in failure with a comparable product that has almost never worked and finished in the trash. I said that it was another brand (BIG FOOT) that it brought together all the that we should not do this type of product. For now this seems MICHELIN pump very reliable and easy to use, reliability remains to be estimated in 1 year or 2 years but with a very favorable opinion FOR NOW !!!!!!!!!!!! !!!!