Sort of not sure what to think.
On one hand it was a badass trailer. Not as exciting as the other two overall, but exciting in a different way. The music was great, as was all the sassiness between the characters. It looks fun. And it was smart to have one trailer, the final one, pumping up fans for the brawl like a wrestling match or something. Perfect final moment with Batman showing that he can somehow keep up.
On the other hand, I'm just not a fan of the overall visual direction. It seems sorta...videogamey in both the cg and the art direction. A lot of ugly night time shots with fire and rubble. This very much feels like the DC universe brought to you by the guy who did 300 and Sucker Punch, made for teenage boys, and I actually think that visual direction will turn off a lot of casual audiences (and critics).
I also think by having so much of Superman in Batman' grimdark world and emphasizing the darker aspects of Supes, the film might be squandering some of the appeal of a Batman/Superman movie, the contrast between the characters. This goes for all the marketing materials thus far. Seems more TDKReturns in its tonal direction than Batman/Superman.
So, the trailer is badass, but I think it could still be so much more given the two characters they're playing with. I pretty much loved MoS btw.
Edit*
Oh ya, ratings.
Comic-con first look (on the rooftop) - 10/10
Teaser ("Is it really surprising...") - 7/10
Comic-con Trailer ("Today is a day for truth") - 9/10
Trailer 2 ("You must be new") - 9/10
Final trailer - 8/10
And just to compare:
MOS teaser(s) - 10/10
MOS trailer - 8/10
MOS trailer 2 - 10/10
Suicide Squad teaser - 9/10
Suicide Squad trailer - 9/10
The Force Awakens teaser & trailer - 11/10