I just got a call from my LBS. They are dropping their Bianchi line of bikes. I bought a Bianchi SISS (single-speed) from them this year, and really like it. I've done a few upgrades - Fox F100X suspension fork - Mavic 3.1 rims - tubeless tires. Anywho, my LBS is offering to swap my frame out for one of 3 Kona frames for free. My choices are the following:

Kona Unit: Steel frame - looks to be similar to the Bianchi

Kona "A": Yup, a full suspension single speed!

Kona Explosif: Perhaps a bit nicer than my Bianchi?

I don't know much about Kona. What do you think about my options???

ThanX!!!!