I owned the Mars versions of the 1006, 67 and the 2003 (the MXL63M, V67M and V93M). I think they're only OK - if you keep your eyes open, though, you can get really nice - nicer than them - used mics for about the same money. The 93M is pretty bright, and I liked it on acoustic guitar. The 67 was a bit boxier sounding to my ear, although it was pretty good on cabinets. I didn't really think the 63M was anything to write home about - it was adequate, but not incredible. I used a pair for drum overheads - I found them to be relatively dark, not a lot of high end or air, it'd probably be great on a bass cabinet or kick drum, though I never tried them for those purposes.
The pres you use will also make a difference - the 93M paired with the RNP was a bit much.
I still have the 93M - I thought it was the best sounding of the three of them, but it's now the last of my choices. I traded the others for an AT4033 and an AT4050 and those are my first choices now.
I think DJL is right - if you can save up a little more dough, it's worth it. And look around - you'd be surprised what you can get used for $150-200.