There's some better scenes--I like the different beginning, which is an extended version of the talk show talking about Blade, and there's a particularly good scene after Blade briefly escapes as Whistler dies, he has a good emotional scene for it. There's also some "meh" scenes, like when Drake and the one crazy chick basically get it on. The ending blows, but the good thing about it is that the Extended version also includes the Theatrical version.
So, my suggestion is if you REALLY want to see it, rent it first and see if it's something you would buy.