I just got one and it's definitely worth it. You wont regret buying one. It's not accurate yet but I kind of like when it overreports my mileage, I like seeing it say 55 or 60mpg when I'm just cruising down the road. I made it more accurate after the last fill and it now reports 35-45mpg. I feel like that isn't good but I'm probably doing just as well. It works instantly for improving FE.
It does make you want to drive slowwww.
