I feel for the Taction team, plus all the anticipating backers. The waiting and setbacks drove me crazy. But... the wait is worth it, don't worry.
Having had mine for 5 weeks now, I have been gradually reducing the taction input. Now I generally don't go above 5. But then there are certain tunes that beg for maximum, 10. Some songs I find actually want an 11 or a 12! But that isn't the general use case - only when you really need pummeling.
I have watched a few TV eps, plus probably rocked up around 40 hours gamíng with them. I used to game with the tactor disabled because the in-game audio was a tad annoying; footsteps had a component to them which the tactor drove. But over time I have gotten used to it and now if I game with the tactor disabled, I actually feel something is missing because I am expecting the sub-lows.
So my advice to any gamers; exposure. Get your head used to the experience and then it adds a new dimension (albeit a small one, as many games won't even drive this low, intentionally).
I am still playing around with EQ and these things. As I previously posted, I don't think they NEED it, but EQ does seem to give a SLIGHT improvement. What I am searching for, is an EQ profile that gives the sound slight more warmth; this is personal preference and not something anyone especially needs to go out to try and achieve.