I purchased the cheapest 2418 on Amazon and didn't expect much. I was pleasantly surprised when I opened the box. It was well packed and came with a really good manual. I know that some of the more expensive versions do not come with a decent manual.The description for the product was a bit lacking so I received some stuff that I didn't expect, like an ER11 collet holder and collet.I have not fully assembled the product but I will update my review once I have. I did notice that there is play in the z-axis. I expected this after watching a YouTube video. The z-axis will move up a bit after making contact, I think this is to protect the machine from a sudden shock when the bit hits the work piece. While this is good for the machine it is not good for accuracy.Overall I would not hesitate recommending this router kit, for $105 it's a great way to explore CNC.