iPad Pro 11” 3rd Gen

Hi all, last time I used an iPad Pro was the older version iPad Pro 9.7 1st gen. Yesterday I found iPad Pro 11” 3rd Gen 256gb WiFi/Cellular on Facebook marketplace. In prestine condition, no box, kept in otterbox case since purchase, rarely use according to owner. All for for one hundred and fifty dollars. Was this a good deal or I could’ve gotten it way cheaper than what I paid for?