Flash Furniture Adjustable Barstool 2 Pk

Ordered 2 of these and one had a odd creaking noise whenever I sat on it. It sounded like the wood internally was cracking and did not sound safe. However, I contacted amazon about this and they were nice enough to me a replacement chair as the other one seemed dangerous and unsafe to use. The new chair is good and and no issues. I've had the chairs for a few months now and one of my chairs has developed a slight wobble to it. Its very minimal and they are still usable, but it seems the metal base at the bottom has gotten a bit warped so it doesn't sit completely flat anymore (no one in my house is overweight so it was not a weight issue). They are only used maybe twice a week at the most so I'm not sure what happened. Other than that, they feel and look like good chairs. Hopefully they hold up for a few years!