EPP is ok. But its heavy and hard to shape. If you do bust a part too much to be glued back together, you have to order a new wing or fuselage. This can take a few days to arrive...meanwhile your out of flying time.

The 6mm depron is widely available at most quality hobby shops. If you bust a depron plane, you can just cut out the section thats messed up and replace it with a patch. Normally this only takes a few minutes.

I had a EPP Parkzone Stryker. While its a fun plane, it got to be a real pain to glue it back together after a mishap. Once I built a 6mm depron plane, repairs were easy and fast.