Instruct: Classify the given Amazon review into its appropriate rating category
Query: not reliable

Bought this in June 2016. One of the legs, when opened, wouldn't hold at the first stop, so I returned it. Second one was good, but after about a year of occasional use has developed the same problem. It's still usable, but has to be carefully balanced so that all three legs are at the same angle. The little metal stops that keep the leg at the correct angle are much too small and unreliable. I thought this was out of warranty, but after writing my review Vanguard commented that I should send it back. They sent me a new one that seems to be an improved design. So, I'm now on my third tripod, but I feel optimistic that this one will last. I'm very pleased with their customer service and I'm hoping this one will hold up. Time will tell.