This makes the third Otter Box Case and if I didn't like them I would not keep buying them. Warranty excellent. On previous models I had clip issues, but when they broke I had no problem with getting a replacement.
Have owned other Otter boxes and this one is pretty good, but it occasionally pops off my belt. To date nothing has broken on the clip. Don't know what can be done to improve the clip, but some engineer should be able to figure it out. I've found the warranty process on the Otter Boxes to be excellent in the past, so if it breaks I will count on them standing behind the product as you've done before on other clips that failed on other models.