If it's a slim model it might support CFW, in which case it's superior to HEN.
If your model is 20xx or 21xx then it supports CFW and you can hack it using bgtoolset (there's a step by step guide by MrMario2011 on YouTube). If it's 30xx then it doesn't support CFW and you'll need to use HEN. If it's 25xx it might or might not support CFW. Use the PS3's built in browser to go to bgtoolset (ps3toolset.com) to find out.