pop out
pros
-small so it can fit into almost any vehicle (my 3 man eskimo can fit into my 2 seater car)
-lightweight
-cheaper to buy
-you can stand up in it
-lots of room for you and gear if you go solo with it
cons
-you need to set it up/ take down. Taking down takes a minute and packing it back into the bag takes two.
-once you set up, it seems to be a hassle to re position
-how durable are the rods/nodes/flex points? with it popping in and out all the time?
flip over
pros
-its on a sled
-just need to flip over the top and you're ready to fish
-small area, can be pro or con, but it will be easier to keep warm/heated in there
cons
-you better make sure it can fit in your vehicle (my clam fish trap scout can only fit into a SUV, truck or hatch, no regular cars )
-heavier
-higher purchase price
If you are going with people, I'd say pop up. If you are going solo, I'd say flip over so you can do more exploring.
edit: btw I'm on foot too.