Everything works pretty much instant for me (including switching to a track on the internal memory from the SD card). Prefer everything about it over iPod thus far (aside from the capacity limit [and current issue with 64GB cards]). Not sure why some seem to suggest the interface isn't user friendly.
HOWEVER, I wasn't able to fix the issue I was having with the 64GB card losing information after putting more files on it (still less than 32GB worth), but I ended up getting a 32GB and it has been working perfectly with 25GBs loaded on it (no more FF issue either). Quite unfortunate. Hopefully that gets fixed.
Edited by Medisinyl - 12/5/13 at 12:11am