Bests & Worsts Reviews from Amazon

I was excited to finally get some cardio in on a consistent basis with this cycle. The bike was very simple to install, and was able to do it myself within 45 minutes. If I were to assemble another one, it would probably take me 15 minutes. The cycle is very sturdy, and everything is well built. That is the good. Now the bad. I can't use it, and Sunny Health thinks I'm a technician of theirs. The flywheel makes an incredibly loud noise when spinning. There is an issue with the flywheel, and I have been going back and forth for weeks with them on this issue. Everyday day, they only email once a day, they tell me to check another nut, bolt, or some piece of the bike to make sure it is done properly. I am sick of tired of having to take this bike apart and put it back together to get it to work. They literally sent me instructions to remove the flywheel assembly from the bike, than remove the casing, and remove various bolts and replace the bearing. How? With what bearing? The one I need to waits weeks to receive, and pay for myself? I am so disappointed with their customer service and disappointed that I haven't been able to use this. At this point I rather receive a refund and go with another company. The only issue is shipping this back would probably cost me 75% of what the unit already cost. I had so much faith in Sunny Health and that they would resolve this headache free, that I threw the box out, even after I was having issues. There was no doubt in my mind that they would make this right, and I was obviously being naïve to how big corporations are run. If they fix this issue soon and hassle free I will bump up the stars, but they will not receive even a 4 star rating because of the hassle. It shouldn't take 4 weeks to get this to work, and I don't think anyone can disagree with me. ***UPDATE*** Sunny Health has done nothing to help me fix the issue. After a month or so, they finally admitted that it may be a defective product, but before agreeing they wanted me to do some more mechanical work on it. Thankfully, Amazon, and their EXCEPTIONAL customer service refunded me at full cost, hassle-free. Amazon really is unbelievable, I had a large chunk of metal garbage in my basement, and now I can actually throw it out, without throwing my money out. Thank you Amazon.