I have used them extensively this year with very good results.
My only complaint is that the low-end on these mics isnt the greatest, compared to other mics out there --- though I think some people exagerate this by saying 'it sucks'.... i dont think it sucks, but could be better. It all depends on what you run with them.... Ive only done one Oktava>MP2 tape so far and I was not happy with the results as the MP2 really exagerrated the low-end of the mics, but the sound wasnt the best to begin with at this show --- I will be trying some more with this combination to see if its worthwhile. Most of my tapes have been with line transformers, so you get a pretty good idea of the sound without any preamp colorization.....
If you are on highspeed, I can offer up a few shows in SHN/FLAC of tapes Ive made..... I have a very nice Tom Petty, Wilco, Wallflowers, to name a few.... (TP and WF are stealth, Wilco is open taping on a stand...) all of htese are oktava cards > ps2 > AT line transformers > stock SBM1>M1