haha...I was reading this to find your experience.
I have two...but am very slow to finish building my brew rig...
took them apart and inspected them and they seem pretty good...especially for the price.
got an SS head for one and sticking with the plastic head for the other...it will likely just be to recirc my ice bath for the 100F to 65F drop unless I later decide to go whole hog from my K-RIMS to a 3 vessel.