Does anyone actually own a Sphere Microphone?

Yes, and it is, without a doubt, one of the best purchases I've made for the studio.
 
First off, it is a remarkable microphone, even without the software. It just sounds great on vocals, guitars, and even hand percussion. It is a little too honest on my mandolin, but that thing will rip your scalp off without a microphone<G>!

Second - the ability to do post processing can be a life saver if you are not working in a top notch space, probably even if you are. You can craft the exact sound you are looking for 4 times out of 5 - this doesn't mean you can ignore proper microphone placement, but it will solve a lot of problems.
 
And last - some of these emulations are frighteningly cool. I can't swear to the accuracy of the ELA 251 M, or the tube type U47, or others for that matter, but I can tell you that they add a touch of class, for lack of a better phrase. There are a couple that are very similar to microphones I own or have used often enough, and I mean really close. The Coles 4038 is especially impressive - how did they get a condenser element to sound like a moving ribbon???

The only place if falls short, to my ears, are the small capsule emulations, and I think that is a matter of geometry, and even though they don't sound "right" they still can sound quite nice.

It ain't cheap, but it is a very useful tool if you do a lot of recording. I am seriously thinking about getting a second one. I'll probably still be thinking about it this time next year, but I am thinking<G>!

So.... whatayathink???

DeeringAmpsSo far so good. I don’t get the 180 “stereo” though. Or maybe I’m missing something.

Not sure what you mean, if you want to pick my brain feel free.

DeeringAmpsIt is on its own a fine microphone.

I think that's what sold me - without the software it is a really nice microphone. I have toyed with the idea of getting a second one.

hmmm... are you using a preamplifier with variable gain? Have you tried the calibration procedure? There is a video, which if course I can't find at the moment, and a pretty well written one-pager HERE. I'll send the link when I find it.
 
As far as Blumlein - or any stereo configuration for that matter, matched microphones are pretty much the way to go, except sometimes using different microphones works well. I've used a TLM-193 as the cardiod microphone in an M/S pair with a bi-directional ribbon and with figure-8 patterns on LDCs. Sometimes it sounds awesome... sometimes, well, not so awesome.
 
The L22 works really well with a C414 in Blumlein, or with a TLM-193 in M/S.

Have fun!