I have worn Levi's jeans for most of my life.  In the past two years I have bought 4 pairs of Levi's (514 and 501), and they have ripped in the crotch, back pockets, and side seams.  The latest pair (514) lasted about three weeks and three times through the washing machine and it literally started to fall apart.  I actually patched up the other three pair of jeans to try and stop the tearing, but it only extended the life a few months.  It's a shame, Levi's used to be my go-to brand, but the quality has seriously declined over the past few years.  The fit is great, but the quality of material is dismal.  It is ridiculous to expect a pair of jeans to last only a few months, and some not being able to withstand a cycle through the washing machine.  Until Levi's quality picks up, it is time to find another go-to brand.

Update:
I contacted Levi's customer service and they were very accommodating.  They responded to my email and I followed instructions to return the jeans for inspection and possible warranty replacement.  I received 2 pair of jeans for replacement, but to my dismay, one of the pair was a full 2" shorter in length than the 30" stated on the label. So much for the "good fit, bad quality" title.  Customer service did their job, but the quality of the jeans is still questionable.