Sounds like his is a Ruger "Redhawk" (double action revolver, Stainless Steel)chambered in .357 as opposed to the "Blackhawk" which is normally blued steel, single action. I think the redhawk is usually a little more than the $350 quoted but you can go onlne and look up prices.
It is a very nice gun and very reliable. Why do you want to trade, are you unhappy with yours?
Your Glock is probably much smaller, lighter and more easily concealed. The Ruger would allow you to shoot someone, literally, through your door. It is a cannon (when loaded with .357 rounds in lieu of the .38 rounds it also accepts).
The Glock is for close combat, the Ruger (depending on barrel length) would probably be more accurate at distances. You can empty the clip of the Glock much faster than the cylinders of the Ruger.
Two different guns for 2 different purposes. I would like to own both.
I do have a S&W .357 and a Colt 45. similar guns to the two you are discussing, not identical.