Supplies annoying. One of the jet patterns. In more cases than not it is old style construction.
They showroom or are they merely working out of their garden or a garage. Ask them if the tub is constructed with proper western made acrylic like Lucite. Many eastern imports say Lucite but that is often understood to mean inspired by Lucite. There is a lot of difference between inspiration and the real thing it's a bit like mutton dressed as lamb. Twenty properly designed and thought out Jets will be much better than forty badly designed Jets.