Our first two motorhomes had magnetic screen door latches, which, in our opinions, were far easier to use than the kind with the little handles that must be unlatched. Not only do you have to slide the little door open to unlatch it when you're outside, it's also difficult to unlatch on your way out if your hands are full.
Our current motorhome HAD the handle-latch system when we bought it but that was the first mod I made to the coach when we got it home. Two small magnets hold it in the closed position and one holds it in the open position. Just give it a nudge on your way out when your hands are full and it opens right up. I put a little handle on the outside of the screen door so all you've got to do is tug on it and it opens right up. It's wonderful. Ahhh, the simple things in life!! A cheap mod too.
Kev