I've only been multiboxing for a few weeks now.. I started with hotkeynet which was great for the basics but when I seen a few feats that keyclone had to offer it got me curious.. so yesterday I bought it and it cut any down time with windows and logging in half, pluse has a few more helpful options such as pip which is very helpful for pvp when your main gets focused hard.. with the press of a button the next main pops up.. the macros are a pain though.. and the round robin system is just nice to have ingeneral.. not sure what else has it.. I haven't tested many progs, but since I tryed keyclone I haven't needed to :P