Wow, good to hear. I'm deciding between an IP-057 and a fat bike, and leaning towards the 057 because I have almost all the parts already, and the fatbike build would get pricey with frameset, wheels, and tires. Would suck to spend the money, build it up and then have the same experience as you!
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Yes, that's another thing I don't like about the fat bikes, everything is proprietary requiring wider bottom brackets, wider hubs, forks, rims, etc. So can't use any of the piles of parts I've accumulated over the years. Get the 057 or if you can get up the scratch go for the Ip 036 full squish....awesome bike!