I've been ridding one for about 3 years regularly, around town (out to the lake for a swim today). It's simple and fun, climbs really well on short climbs, great for winter and rain riding (less to clean drivetrain lasts longer). Fixed gears are great. of course mine has fender, mudflaps that nearly drag the ground, campy brakes front and back, phil wood hubs laced to Nisi rims, a moustache bar and yes... TA cranks, though I am thinking about switching to first gen chorus (I want to try 172.5 and could use something stiffer, the TA are pretty noodly). And with fixamatosis producing 135BCD 1/8" track rings it opens a new window of crank useage.
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1 Super Record bike, 1 Nuovo Record bike, 1 Pista, 1 Road, 1 Cyclocross/Allrounder, 1 MTB, 1 Touring, 1 Fixed gear