I just got a Poker II and have been loving it so far, though it's worth taking my opinion with a grain of salt as I have only used one other mechanical keyboard so far in my life. That said, I really do like the way it looks, typeface on the keys aside (they're gonna get swapped out soon enough anyway). My main complaint so far is the lack of arrow keys, which I guess I'd never realized just how much I rely on while browsing the Internet. I do miss those, but it also has led me toward the Vimium Chrome Extension, which is better than having arrow keys (for web browsing at least).
I guess one other thing to take into consideration is whether or not you think you'd use the Poker II's programming mode. Someone correct me if I am wrong, but the Leopold does not have that feature, right? I don't know if I'll use it too often, but it does seem like a nice way to have some app/text shortcuts, etc. I imagine there are good ways to put it to use. I did set up mine to bring up the Spotlight menu in OS X and open some common programs and files. It's neat, though ultimately just a small convenience I doubt I'll use too often.
As far as build quality, etc., seems fine so far. Only had it for a day, though.
Oh right, one extra thing: I think it's less that I miss the arrow keys as it is that I am not totally crazy about WASD being the keys to replace them with. Yeah, yeah, FPS conventions, etc., but meh. It's kind of awkward without shifting your left hand's fingers one key to the left.
