It's in my truck now and is holding coolant fine. The truck hasn't been ran any longer than 20 minutes yet. Air flows through well and hasn't come anywhere close to overheating. I'm hoping to get it on the highway, in some traffic, park it up against a wall, stuff like that to really test in the next month or so.
It's ok for what it is, definitely not worth anymore than they're asking for them. If I were to do it again, I'd get the 34"x19" 3 core plastic tank with the short filler neck, or the radiator express one that PlayingWithTBI has linked.