Just my personal thing, but the further into the hobby, and the more time passes by, I am slowly but surely growing into belief that Signature Plastics is simply the best manufacturer out there. Whether you like SA or not for ergonomics/aesthetics is of course totally different topic, but they are so hard to beat in terms of quality. Plus, their turnaround time for recent sets seemed to be reasonable lately.
I can't help myself but to appreciate the work they're doing.
I thought I will have a strong preference for MT3, but managed to get one set and I say it's not that special. Not bad (especially the profile itself), but the slightly bent and ragged edges, lower thickness and pretty rough texture of their keycaps bring the score down a bit. Now, I am still waiting for my first SA to arrive (SA Skyriter), so to anyone out there having hands-on experience, share your feelings - maybe I'm wrong (I am basing my judgment on close inspection of photos from SA users).