For some background on this lens, here are a couple of links:
The 105 has been described as the “perfect portrait lens”. I don’t know about that, but I’m sure it’ll be good enough for me. At around $200 it’s hard to complain.
The all-metal lens feels great and balances nicely on the F3
I’m looking forward to making some portraits with this lens. I ran a quick roll through it yesterday. Here are a few examples from that roll.