Is size important?

[Mojo]

I would not have a pontoon less than 9 feet.

I think the shorter toons consume too much of the rowing stroke power in to a rocking motion along the toon.

The longer toon tracks better and usually drafts less water.

Aluminum frame is a must.

Go for a quality boat with a 10 year warranty. Lots of cheap junk out there.

Unless you get a framless kickboat.