Apple’s iPhone, just short of 10 years old, has hit puberty.

Like adolescents coping with awkward changes to their bodies, the iPhone 7, due for release on Friday, introduces some uncomfortable transitions. They include the much ballyhooed removal of the headphone jack and the replacement of the physical home button with a virtual one.

For Apple customers, this creates a difficult choice. While upgrading iPhones in the past was typically a no-brainer, now people must wrestle with whether to deal with the hassle of having no audio jack. Many people could simply upgrade to last year’s model, the iPhone 6S, which is also a fast phone with great cameras and still has the jack.

Yet after testing the new iPhone 7 and its larger sibling, the 7 Plus, for five days, I have hopped on the 7 train. While it is irritating not to have an audio jack — Apple nixed the 3.5 millimeter port to make room for faster chips, better batteries and to make the iPhone water-resistant — and the older physical home button feels better to press than the new virtual one, the new iPhones deliver on Apple’s promises.

The iPhone 7 and 7 Plus are tremendously fast — more than double the speed of the two-year-old iPhone 6 — and their cameras produce superb, vivid photos. The battery life is improved, and the iPhones survived water torture tests.