You sound happy with and excited about your purchase. Good for you for purchasing it locally. I have a local dealer that I like to trade with, but he's wanting five-something for one. I just can't make that large of a donation.
I'm a bit suspicious of the $339 price, in spite of your research. All the major discount places are offering it for 439-459. That means that's very near (or even at) cost. Canon's not selling them to dealers for anywhere near $339, so how can this dealer do it? Something's got to be fishy. Are they in Brooklyn? For some reason, that neighborhood is notorious for shady photo retailers. . . .
I pretty much do business exclusively with B&H in New York and Canoga Camera in LA. I'll trade with Samy's in LA once in a while, but Canoga's the David to their Goliath.
Unfortunately, the wide angle is right out for me:
As bad as I want the 28mm equivalent, this is just re-freaking-diculous. I had an equally gargantuan adapter on my Nikon 5700 and it just wasn't cool. The adapter for the 900/950/995 was large, but far more reasonable than this. I'll just give up and accept 35mm equivalent. It was good enough for
Henri Cartier-Bresson, so it'll have to do for me.