I've been using Deus X in my variant, and I do like it.
I'm not 100% sold on Dirty Laundry. I like that it is a low-cost money card, but there are some situations where it is better off not played.
I added a 2nd SMC, but I'm not sold on it. I like it for the first pass of the deck, and as a better threat to maintain Clot-lock through Levy, but it is often a dead card otherwise. I played against several bad-pub decks, so it was probably overpowered for my testing.
I have also experienced opponents conceding in frustration, but he or she tried to blame me for 'playing too slow.' I will admit that the combo does cycle a lot of cards on 1 click (I installed 6 spy cams and 3 CC immediately after a Levy), but this particular opponent had 5 ICE on R&D, 4 on HQ, and no scoring remote. I never spied an agenda on R&D, so I didn't run it; he never threatened to FA, so I didn't pressure HQ. But that's what opponents on Jinteki are like sometimes.
As far as the slow start goes, I agree with that sentiment. It can be slow and difficult to start, and there is limited pressure on rush strategies. I have been focusing on establishing my combo and getting set up to block FA, camp the remote, and snipe R&D as quickly as possible. My fastest was set up by turn 4, my slowest turn 9. The turn 9 game was painful, and I eventually lost when I had to Levy and my opponent scored on FA (I could have won if I had SMC).
Another issue is getting the ready to spam all of the hardware out, but not having a Tech Writer to charge up, or any Tech Traders to pay out on the hardware.
Overall I like the deck, but I need to learn some of the match ups better to really do well with it.