Really well built saber. I was impressed with the engineering that went into the design and it is very accurate to the original concept sketch even down to the internal tubing. There are a few other versions of this hilt out there, but the others had some inaccurate details such as a too large control box, but this one is just right.
One thing about this saber that may end up being an issue is the inner grip tube: it connects to the upper section of the saber with 4 screws (others screw off) and will be difficult to remove. This will make it more difficult if you are planning a removable chassis, however its worth it for a more accurate saber.