I agree this is the best staff, but don't count out bahamuts staff completely. You can still use bahamuts for Elemental Siphon, or wherever else you need some additional smn magic skill.
I've seen this beautiful piece of work in action by Palemoon. Me and a few ppl from my linkshell were NM hunting in La Vaule for SCNM box's, and then as we waited for cogtooth to respawn and my bud lj said "a smn just took claim.... and he has a *** nirvana!" i was like wtf!? he was kiting cogtooth around and i'm positive he was fully merited with the staff his wind blades were doing 1500 easy we ended up watching him solo it. it was just plain awesome all i could do was /clap to him.
ignoring aftermath effects and melee situations, this staff is better for idling and for landing magic attack pacts, that's it. with meleeing, or items/shiki, it may be better for landing physical attack pacts.