CARSUN 150PSI Portable Handheld Air Compressor

Initially, I was thrilled with this unit. I inflated bike tires first and then car tires and it worked great. Occasionally, there was a slight delay between pulling the trigger and it actually starting to pump the air. But I didn't think anything of it. I just thought that was normal. Unfortunately, over time the delay became worse and worse until it would literally time out before inflating a tire. So... I tried first the troubleshooting steps that were provided ostensibly by the manufacturer or seller. But I wasn't worried because I had signed up for the extended warranty on the unit. All I had to do was reply to my warranty verification email and I would get a response within 24 to 48 hours. Unfortunately, that response never came (and I did check my SPAM folder.) I tried twice to reach out to the seller. Still no response. Consequently, I reached out to Amazon to see if they might be able to help me. At first things seemed great. They would issue me a refund and all I had to do was return the unit, and there was a free option to do so. Only problem was I can't accept or send anything from my physical address. For security and logistical reasons I need to have everything set up through a third party. But I was told that the return had to come from the address to which it was sent. I was advised by Amazon customer service to contact the carrier (UPS) who then told me that it would cost about $24 to change the pickup location. Totally unacceptable. And if I left the address the way it was, I would literally have to potentially wait around for hours for UPS to pick up the package. There is a UPS Store ore near me as well as multiple UPS pickup points. But again, that was not an option provided by the seller. And when I brought these facts to the attention of Amazon customer service, I was essentially told there was nothing they could do. The return needed to happen because of the seller's inventory. I found that to be ridiculous and absurd. All I wanted was warranty support. And now I had invested nearly an hour in back and forth nonsense about this issue with multiple customer service reps. Long story short I told them to forget it. I spend an awful lot of money here on Amazon and I told them that I had hoped that we could work out something that would be mutually acceptable. I shouldn't have to return the unit. But they seemed to side with the seller. Consequently, I gave up and I'm going to take my business elsewhere. My advice would be don't buy this unit if you expect any kind of support if things go sideways--either from the seller or from Amazon if you are in my situation. Incredibly frustrating and terrible customer service all around.