Originally Posted by
RChung
When I first got one, it helped me achieve my goal of getting faster.
Later, it helped me achieve my goal of not getting slower.
Now it mostly helps me keep an accurate record of my decline. That and, as may be evident, I use it pretty successfully to irritate random guys on internet forums.
+1
I have used many and own many. Get one if you want to focus your training. Also get one if you want to destroy any little bit of joy you still get from just riding along every now and then.