LFS is definitely worth it, if you want to know how a Linux distribution works under the hood. While some mebers here use it as their main distro that Isn’t something I would do, but it is viable.

Is Linux from scratch useful?

This is, naturally, a longer process than installing a pre-compiled Linux distribution. According to the Linux From Scratch site, the advantages to this method are a compact, flexible and secure system and a greater understanding of the internal workings of the Linux-based operating systems.

Is Linux From Scratch difficult?

Installing Linux From Scratch is even harder than installing Gentoo: there is no Portage to do the hard work and all compiling has to be done with the classic UNIX tools of configure, make and make install. … Any recent distribution will do, as long as it is complete with a GCC compiler and relevant development tools.