The web site is thin on details of this bumper, so I was hoping for some feedback. Does the tire carrier lock open somehow? Thats one of the features I love about the slee bumper and would be a deal breaker for me if the hanna doesn't have it. Also, how do you feel about the overall quality of the bumper. Does it squeek or rattle at all? Also, how does the carrier latch closed? Any pictures or additional comments would be appreciated.