iFixIt has gotten their hands on the new HTC One. They're already torn the thing apart and posted the internals online for all to see. The device, while sturdy, is difficult at best to repair. The construction is similar to Apple's products in that it has a quality feel but is nearly impossible to repair.
They discovered that the motherboard is covered in sheets of copper foil, which are nearly impossible to reinstall during reassembly. Replacing the battery or the screen--two common tasks--is difficult. The battery is beneath the motherboard and adhered to the midframe. The screen requires the rear case to be removed.
Hit up the source link below to see the full dissection of the new HTC One.