Pet Palace appears to be a brand of Partysaving which I assume is an import company. Details were very scarce when I tried to track down the company. This nothwithstanding, Fakespot rates it reviews at four stars and gives it a trustworthy rating of four stars. Their products appear to be well recieved on Amazon having many bestsellers in their categories.
Lack of company information is not that big a negative, there are lots of Amazon reviews on their products and they also sell on Ebay, and in Walmart and Sears.
Cat Trees and Towers are not a high tech item so pay attention to Amazon reviews of the product you are buying and you should be happy with your purchase.