I have owned one for about 15 years.
I haven't used it much but plan to in the future.
Mine doesn't have a gas furnace which would be nice if your going to do any cool weather fishing or hunting.
Mine does have electric heat and air, ice box (I use to store stuff in) sink and two burner gas cook stove.
No shower in mine , I have an outside one for Summer use.
They are great for a single person on a hunting or fishing trip.
But I'm 6'2" and 250 + , old and broke down . LOL
A skinny young couple could manage if they had too.
Some of the newer ones have slide outs which would give you more room , but you can buy a really nice tag along trailer for the same money.