TLF can show right to left and top to bottom text. It can also link to other TLF fields, so that the same text can flow between them, even if the user is typing in more text. There are many more advanced features you can read about in the help.
The TLF component isn't small though (it's about 130k), so if you just need a standard textfield feature, use Classic text.
from adobe, with tlf:
it's better to use tlf text if you need any of its features.