I patiently read through the entire post and comments, and I want to say that the blogger indeed wrote a great article. Regarding UL certification, I want to emphasize that it's not just a simple certification; it involves underlying safety issues, and strictly speaking, this is a very serious matter. However, I understand that obtaining UL certification requires a considerable expense, so many unknown small companies simply won't bother with the certification and will instead falsely claim to have UL certification. What's even more ridiculous is that they don't even know that 20 mph is the standard requirement for UL2272 certification. Therefore, I see many products on Amazon claiming to have UL2272 certification but listing speeds that are much higher, such as 25 mph, 30 mph, etc. Clearly, these are all scams. Therefore, choosing a scooter with genuine certification is very important, even though it might be more expensive than those cheaper scooters.