As a big fan of Justified, I didn't mind City Primeval and watched the whole season in a few days...however, it definitely doesn't have the same feel at all, and it's not just because it doesn't take place in Harlan.
Spoiler alert:
Except for Raylan, basically nothing else is similar, including humour and action scenes. Raylan, the bad-ass quick draw artist practically doesn't pull his weapon the whole show until the last few minutes of the series.
I'd like to see a second season, but it needs some readjusting to the old days of the show. Bringing Boyd back would help a lot, as he was a hugely integral part of the old series...Justified in Mexico would make a way cooler location and backdrop for Raylan than Detroit did.