For very limited situations, it does replace them. Obviously the sealander is only a recreational vehicle for those who don’t intend to do anything at all serious on the water.
“For very limited situations”
I have lived around the water (Tampa Bay) for over 24 years. One thing every boater and camper learns is not to buy something like this for very limited situations...that quickly turns into.. “never using it and selling it for a huge loss”
Why bother? It doesn’t look as if you could be safe in more than 2-3 feet of water.
Much cheaper, bigger and more stable:
http://www.suntrackerboats.com/recreational-pontoons.cfm?modelyear=2016