Levis is a brand that I have grown up with. Even after so many years, it continues to be a great product and a great brand. Over the years, I have tried other brands of jeans(since they were given to me as presents): Wrangler, Lee and Pepe, to name a few, but none of them lasted for as long as my Levis.
One develops a personal connection with apparel brands because one wears them close to ones skin, I guess. Levis has always been the most comfortable jeans I have ever worn - it almost becomes a second skin after some time. The brand offers various fits to cater to different preferences. All of them are comfortable.
And yes - these jeans really, really last. Admittedly, the current products dont last as long as the earlier ones used to(some of my jeans have been in my wardrobe since the eighties and I am still wearing them!) but they last better than most other brands. In particular, you wont have any problems with the buttons, zips, studs and other trims.
Levis has been around since 1873 and still going strong - that in itself speaks volumes for this iconic brand that is and has always been one of my favourites.