Iancoleman is not recommendable for new crypto users because they can easily do something wrong, I also don't like the idea of typing your recovery seed into a website because you want to get the right private key for a particular address or others, since this website works online I don't recommend using the same wallet for storing funds anymore, typing your keys online is already a red flag for me.

If I have to recommend this iancoleman website to anyone it will be crypto experts or those who want to get the fund in the wallet out and never use the wallet address ever again.