I am a big fan of Pete Thorn's youtube gear and question and answer videos. He talked about using speaker IRs with his Suhr amp. In fact, in the video he made an IR and compared the mic'd version and the IR version. Over youtube they both sounded good to me.
I downloaded some free IRs from Redwirez and Ownhammer to try and they just don't do it for me. I know that if I record them, they will sound fine but I just don't like how it "feels" when I am playing.
I have several amp sims (TH2 Producer, ABG, S-Gear 2, Amplitube free and Guitar Rig 4) and I don't love them like I do my amps. If I record with the sims and listen to the recording later, I like it. That is, I can't tell that is was a sim. I just don't feel it when I am playing through them. For lack of a better term, it sounds like "plastic".
So I thought going the speaker IR route with my own amp would be a good solution. Especially since I don't have all the mics I want. I have an SM57 but I love the mic Pete used (a ribbon mic) to mix in during his video. It is a couple hundred dollars though. The IRs are much cheaper!
Maybe the "plastic" feel and sound are my speakers and headphones?
What do you guys do and if you feel the same way, how do you get over it? :-)