Hi fisha63.
I have not had anything to do with the 60 E-tec but my father has a 50 which I believe is the same motor just downrated, he is very happy with it and it is proving to be a very reliable motor.
It is fitted to a 4.5 mtr Bluefin and does the job really well, for a twin it is really smooth almost no vibration and quiet too. It has impressed everyone who has driven it including myself as for fuel economy I do not know but if he does not complain then it must be O,K.
My parents fish more than ever since they have bought the Bluefin, both boat and motor are a real pleasure to use.
I hope this helps.