Should I go without a case on my iPhone 5S or should I have one on it?

I just got my iPhone 5S about half a month ago and my mom bought it for me but I had to pay her back for every cent. So now that I have made a small investment into this device and i immediately put a case on it and I got a zagg screen protector and it is well protected. However I really like the phone without the case because it's slim and comfortable to hold. I might just leave the screen protector on and no case since the is metal. I'm just asking for opinions to see what I should do.

Well if you really like the metal, you can at least have a bumper case, that way the edges are protected while you still have the nice metal. Or you can get a clear iphone case. Honestly, Not having a case on your phone is fine, as long as you are careful

Iphone 5S is gorgeous, looks beautiful
But honestly, it's prime to scratches and bumps, coz of its aluminuim build
Get a bumper case if you really want to use your iphone in all it's beauty, however, you'll still need to be carefull
Get a transparent case which will protect it as well as show of its design
Without a case, be very carefull