Welcome to the forum.
Yes, your tub is fine.
For a forever home, plastic is superior to wood in that it will hold up much longer and hold humidity better, I'm not positive if it holds heat better.
The Exo-Terra will take more work to stabilize humidity and it for sure will not hold heat as well as the others. But it makes a nice display.
I have replaced all of my tanks but one with plastic, the last tank will be replaced as soon as my plastic enclosure arrives.
For nondisplay or multiple snakes, tubs and or a rack system work well.
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