JNH Sauna Build Quality (or lack thereof??)

This is the sauna: https://amzn.to/2T2Ngx1 This is the JNH Lifestyles Ensi sauna I bought from Amazon. Not only was is supposed to be low emf, but I expected it to be at least decent quality since it's twice as much as I paid for the Dynamic Barcelona from Costco. Nope. https://youtu.be/vTxo_SVXJUo