What keyword IF?
People are discussing pumps....funny you mention reading, the very first post is of a person dealing with a Jebao crapping out a few times in 8 months. Now its a PITA for him dealing with the customer service due to a language barrier.
No one is saying that a Tunze or Vortech is problem proof. But they have very long track records as being extremely reliable. They also have outstanding customer service from 2 companies that are based in the US. You can expect wearable parts to fail over time, and they can be replaced. With vortechs it is the wetsides, with Tunzes it is the drive units. Many people have had Tunzes lasting 10+ years. I have never had one fail in almost 10 years of their products. Vortechs have a similar track record. Many, many people have posted that they do not care if the Jebao it total crap(we have yet to see its reliability long term), and they would be willing to pitch them and buy new ones many times.
You do get what you pay for, it is simple as that. If you do not want to pay that much, that is your choice....but don't start claiming that we are whining or are bitter because we paid more. I would pay the premium again and again knowing what I was getting in return/