I spent quite a bit of time looking and climbing on the Vexus as well. I really liked the boat a lot. My takeaway was about the same as n2ratfishin. They make a good boat BUT.....
I was thinking about trading boats. My six year warranty runs out on the Yamaha this year. I wanted to get an Ultrex. There were some other improvements or upgrades I thought about. Plus I just was thinking about a new boat. I have had this RT188 about as long as I ever kept a boat before except for a couple.
I just could not see enough improvement differences in the Vexus to make me spend almost $20,000 and my boat for one if you included taxes and everything. It is nicer than my Ranger RT but just not that much nicer. And I really really like fishing from the Ranger. And even with the Yamaha being out of warranty soon, the chances of a problem are remote. The Yamaha F115 is about as dependable as they come. So I decided to replace the Maxuum with the Ultrex and add some new electronics and a few other things. It was a good decision for me. If I did not have a good motor and boat already, the Vexus would be on the list in consideration if I could find a decent price on one.