Actually, I only owned the HE-300s for about 3 days. I figured that if I were to own HifiMANs, it would be the orthos - the HE-400 and HE-500. I didn't feel that having the HE-500 sit on my shelf, while using the HE-300s for listening was a very good move to make. So, the HE-300s were sold locally.
I wish I could offer more advice. The sound of the HE-300s is good, but if you're used to the ortho sound, it's a bit harder to adjust to what the HE-300 offers regarding output.