Beating a dead horse saying that the concept is really but, but the dash needs some tweaking, but those are my main thoughts! The biggest issue with the dash is that, for the most part, I want to move my ship away from the anchor until I'm ready to dash to it. It requires some fairly sharp reaction to point to shoot the anchor, then point and move away, the snap my back to the anchor to warp to it.
The concept is really cool, and I can definitely seeing this work well in different levels (which then brings some interesting design questions for you, for example: will the anchor go through walls, stay at the wall, or disappear when it hits one?). This is definitely something I was to see more of!