new to kayaks a few questions

[fishnducks311]

So I have a float tube and pontoon boat, but want to get into kayaks. How is it fishing in one compared to a tube or pontoon. Also I am 6'2 260 with a size 15 foot will a sit in boat fit my big feet? And has anyone ever used the field and stream 12 ft camo boat not sure of the model number? Any thoughts on the removeable storage pod? Thanks!