A local gentleman had a 2014 90 etec puke on him in the first 20 minutes. BRP give him a complete new engine after some complaining which seems fair but I wouldn't want the worry. I haven't heard of one single engine loss out of the mercurys. not one. The Yamaha I believe will make more power but price, pump, and small number of service centers holds back their sales. If you want an unbiased opinion call GW luttrell in bunker mo. He races omc engines and will tell you all about the pro's and cons of each engine. As far as basing your purchase on one guy, its up to you but do yourself a favor and check out both boats before you go make a decision. There is no way that his info is accurate. now he may think so, I'm not calling him a liar. I have had each engine in house and the mercury will turn more rpm's than the evinrude. Like I said if the etec were faster we would see them on every boat on the river. We have a 40 hp limit and competition is heavy between the good-ole-boys here. we would all pay an extra 800 -1000 clams for a better running engine. Guys here drop 600 bucks for a polished and cut impeller very small gain in mph. If the etec ran better trust me, they would out number mercs 10-1. As it stands its the other way around.