I personally don't see the big advantage to those river pro boats compared to a regular jon with a jet outboard on the back, especially considering price. Also, Out of the boats i've seen(one in person, and the ones they show online), I personally don't care for their layout inside the hull(deck spacing, consoles, etc). Another thing about having that bottom flush mounted inboard, if your jet intake gets clogged, your going swimming to unclog it......With an outboard, you can usually trim it up and reach around and clear the grates on the intake without even getting wet.
In my opinion, Depending on how big(tight) the water is your gonna be in....give me a 1654 with a 65/90 hp jet, or a 18ft'er with a 90/115 jet and i'd be happy. And you would have saved at least a good 10K. That's just my 2 cents.