Be aware of the Genesis geometry concept that GF builds into their bikes. It results in a longer top tube, for a more 'stretched out' feel to the ride. If you've ridden the bike, you probably know this.
If there is a Kona dealer near you, you may want to check out a couple of their bikes, the Fire Mountain and Blast can be had for a few bucks less than the Tassajara. Much better component spec on the Blast than on the Tass.
I rode the Tass and the Kona Blast several times, and decided on the Kona. I haven't regreted it yet. The deal-breaker for me was the geometry of the Tass. It just did not climb as well as the Kona, IMO.
However, the Tass has a great reputation for a mass-production bike, despite a slightly weak component spec for the money. Are you sure that frame is produced in the USA?