Float tubing is a blast. Never lost any equipment myself. When boat fishing I have an enormous tackle system and 7 rods. In the tube...two spinning rods and a few tupperware tubs with lures specific to the pond and my plan....and a sandwich. Sometimes I'll put a cold one in a coozy to keep it cold to have with my sandwich. Simple is best for tubing.
You walk into the water backwards due to the flippers and travel backwards too. Its not really fast but adequate. You will get very good at positioning yourself and sometimes flipper very slowly to hold your place still in the wind while you target an area.
My take is it is nice to be out there solo and focused on minimal tackle. Its a real blast reeling in a big fish at nearly eye level !
Downside...as with boating it is a rough if its too windy.
Upside...simple, peaceful, easy to focus, and some great casting angles to docks and under tree limbs.
Have fun.
Mark