I've seen all the items put up, but only won the lugermorph/badge and iron curtain. I also won enough to unlock two tables and a new deck, which is neat though far less noteworthy.
So yeah, it's a novelty poker game. Overall, I'd say some of the lines miss the mark, but I am getting my four forty-nine's worth of comedy, which is what I expected. Plus, depending on how you look at it, it's a spectacularly low price to pay to learn that I'm not a very good poker player.
I don't know if it's just random chance, but each character seems to have the appearance of a specific playing style. Max seems hard to pin down, erratic even (after getting knocked out myself I saw him fold on a straight after putting 10k in the pot); I want to say he has a tendency to bluff but maybe he's just a dumb. Strong Bad plays aggressively and I rarely see him fold. Tycho is very prudent and folds a lot; so far he's done the best out of everyone. Heavy... I don't know.
Regarding Tycho's voice, it works. I'd even say I like it. The guy's got a snarky edge, but relaxed and nonchalant still, and in a way it's a great contrast to the other characters. For my first win, the game ended in like a fifteen hand duel with Tycho and me, and I was like, "alright, the kids have left the table, now it's time for the adults to play". The d20 never makes sense though, it's just there.
All in all, no regrets here.