I received this today, a week and a half after ordering. This is my second pixel saber, my other being a Luke v2 xeno from a different vendor. This one apparently uses an SN-pixelv4 setup which is far simpler to use, and far less twitchy.
The chassis just slides right out, and can only be slid back in in one orientation, it plugs neatly into its connector sockets.
The only gripes I've had so far... The battery needed a bit of fiddling with to get it to contact properly after charging. Actually, the chassis will speak to you when it's in properly, which saved a lot of frustration and trial and error. Hm. Hardly a show stopper really.
The other thing is a bit trivial, but because the blade is an 82mm and it sits deep into the hilt, it looks a bit short? It needs a longer blade in it really, I may get hold of a longer 7/8" pixel blade for this.
Overall it's a clean, aesthetically pleasing and slightly petite hilt that fits comfortably in the hand and is a pleasure to handle. I'll definitely consider nsabers again for the saber quality, product range and delivery speed.