I've been fishing out my buddy's boat for a year:
Stealth Raft
His is the 16' model.
Benefits:
It is super stable (rated for Class IV?) and drafts very shallow. Three men have stood on one side of the walking platforms are over the pontoons and the boat didn't budge!
Transom mounts on both ends.
Plenty of room to stand on the deck and good walk around room over the pontoons. The walkaround deck has a high traction textured surface that works extremely well. It's so spiky, it hurts to kneel on it. It's nice to be able to stand up high for sight fishing, though.
Roomy. My buddy has had 5+ adults and kids in it with no issues, not that I suggest doing that.
The drag anchor and pulleys work well.
It has an interesting tilt trailer that makes launching and taking out fairly easy.
The deck is above the waterline and can serve as a jon boat in the unlikely event of a catastrophic inflation failure.
It looks really strange (attention-getter).
Drawbacks:
It's double the weight of the pontoon you linked. This is mainly an issue when you run aground on 1" deep riffles or launching in very low water at an unimproved site. You will not carry it or drag it in anywhere.
I hate the rod holders. They put PVC tube recessed in the walkaround deck. The tubes are much too small. I think they did this to get storage for 6 rods. The problem is you have to bend the rods with the guides facing in to get the rods in the tubes. This scratches the crap out of the finish in the guide wraps.
You will likely not be able to float smaller flowing water. in NEPA, we are limited to the upper Delaware, West Branch Susquehanna, and Lehigh.
It can be a challenge to track in wind or with a motor, but it's manageable.
It's more expensive that the pontoon you are looking at.
He and I debated this purchase for at least a year. He is limited to boat fishing for medical reasons. I think we agree it was a good decision. The only regret is it's heavy. The deck unstraps from the pontoons so you could, in theory, build a frame like the one on the boat you are looking at. That would take 30% of the weight off and make it convertible....in theory.