A couple of weeks ago I purchased a lightly used Jamis Commuter 1 Xms with less than 100 km on it.
Because the bike didn't come with a rear rack (which has been ordered and am awaiting it), I've used it only for small distance rides and so far the bike itself is running pretty good.

Since this morning's commute didn't involve in carrying anything larger than my wallet and cellphone, i decided to take the Jamis out for the 10+ mile commute and a mile out of my home, it started to drizzle. The minute the pavement was wet, the tires lost all traction and started to slip pretty bad and even though it continued to rain clearing up the initial muck on the surface, the bike kept on slipping dangerously.

I've been commuting for the past two years and have ridden countless times in rain, storms and even the odd snowfall and I have never had tires slip and slide like this. The tires themselves are new (bike was bought in 2013 and constructed in mid-2012), and I've double and triple check the pressure, wear and even for factory defects.

So... unless it's some really bad batch, I would suggest to avoid purchasing the CST Marathon/Tour 700x32 tires at all costs, unless you live somewhere where it never rains!