I had a 3T mutant classic (the threaded version). It was too long for me, so I got rid of it. It was a really nice stem... the removable face plate design is so handy. I wound up replacing it with about 4 cheap road stems, so I could still switch bars around easily.

There are attractive options for open-faced quill stems. Most notably, the mutant classic, the salsa SUL, the cinelli frog and the deda murex.