Review (5/5): Nail files are fantastic!  Buffers work well, BUT.....
Nail files are fantastic, no issues whatsoever with them. 5+ star ratings on them! I'm giving 5 stars even though I don't like the buffers because it's my own personal preference and an item that works well shouldn't be counted off. Posting as a warning to those who may be like me.
Buffing blocks work and I can get my nails super smooth with them, but I just can't... it's like buffing my nails with a block of styrofoam. I can't stand the feel of styrofoam, and buffing my nails feels like rubbing them on an old styrofoam cooler. And remember what styrofoam coolers sound like when the lids rub up against the coolers? It kind of sounds like that. I can't get past the feel and the sound so won't be using them. They work well - no issues with that - it's just me not liking the side effects of using them. Posting for anyone who may get the heebie-jeebies dealing with styrofoam.