Cooler type makes very little difference providing the air space is eliminated with towels or newspaper - and of course, the lid is kept shut. Old standby Igloo cooler packed properly has held my briskets above 145 for over 8 hours.
I have Rtic and holds hot for a while. Any rotomolded cooler will work. I've gone 5-6hrs and could have done more. They are similar to cambros in terms of holding times.
Never used a Yeti, but insulation works both ways keeping things cold or keeping things hot. It will do the trick.
However..... at home I also use a Party Stacker, and at events it does live up to it's name because it 'stacks' perfectly on my Cambro.
it's also a cool vessel for sous vide, but that's another story. Bottom line, $25 well spent.
PS - Mrs ~t~ has a Party Stacker in the trunk of of her car to keep meats and such cool on shopping day.
Another vote for the party stacker. It works great.
Cooked a couple turkey breasts for my mother-in-law's 90th birthday. Took them off the smoker at 165 IT at 8:00 am and wrapped in butcher paper and then a towel. Put them in my Yeti Roadie and headed to north Dallas. Four hours later when I got to my daughter's house they were still too hot to touch with my bare hands. Everyone said I nailed it.
Cooler type makes very little difference.
Has anyone ran a thermometer probe thru the drain hole on the cooler to keep tabs on IT? I doubt that would compromise the heat retention much if at all, but who knows.