KT 150 impressions

I would like to hear the impressions of those who have used KT 150s.  I see them showing up in amps by good manufacturers and I am curious.  Over the last few years I have been going back and forth between EL34s and KT120s in my PrimaLuna amps, and I think I prefer the EL34s for various reasons.  Whereas the KT120s seem to have a bit more punch than the EL34s I find they have a bit of "glare" after a while, and I like the way voices (choirs) sound on the EL34s, as well as the overall space they produce.  Plucked instruments do have a bit more impact with the KT120s, and the 120s are more powerful, but in general I find the EL34s a bit more believable.  I have read that the 150s produce great soundstage, which I like, but hey are expensive, which is why I thought I would start a conversation before laying out the cash (I need eight of them).