I am not going to suggest that Rugers are bomb-proof, but when Ruger first came out with the security sixes, Ruger reps used to take these through their own little torture tests when selling to police departments.
They used to throw the security sixes on the floor and against walls and then load the guns and shoot them without any issues. I believe that they even ran them over with cars, as well. The GP100 is beefier and stronger than a "six".
You might not want to try these types of things with other revolver makes and models. Rugers, especially the ones with triple locking cylinders, are able to withstand a lot more abuse than smiths or colts.
The Ruger will still be shooting, without having to change their coil springs, long after you change the springs several times in your CZ and it's magazines. It will also routinely shoot loads, without going out of time, that would blow up your CZs.
I like autoloaders, but would depend on a Ruger revolver before I would depend on any autoloader. They'll still be shooting long after autoloaders are retired. According to posts on the Ruger forum, Corbon retired their GP100 test gun in 2005. It had over 200,000 rounds of hot corbon loads through it. It still shot 2" six shot groups at 25 yards using a ransom. I know that there are G17s out there with reported round counts that are higher, but there is a huge difference between 9mm and hot .357 magnum.