We've got an Estwing around here. According to the site it's the "long handled camper's axe". It's a [censored] near indestructible axe, sure, but I don't think it works as nicely as models from Fiskars. The handle is a large percentage of the total weight, and the point of balance is much lower than is optimal. It feels like a lot of your energy is wasted. Also the head is very slim so that it cuts well, which unfortunately means it jams like crazy. If you use an Estwing on a decent sized tree you really have to moderate your swings or you'll be wrenching the axe back out every time.

They certainly work, but not ideal.