I have the Jamis Coda Femme. It's my "second" bike, and I use it for around town errands, riding with friends who are just beginning, and the bike path. I have done 25-50 mile rides on it, though, but these rides were very casual, bike path/vacation type rides. That said, I love the way the bike feels. It's smooth, handles well in traffic, and I don't notice much difference in handling when my pannier is stuffed with purchases. Several people here ride the Jamis Coda as their #1 bike and love it. I think for the price, it's great. My only complaint is it does *feel* heavy/like a tank to me. I guess that's because my roadie is so light (14.7 lbs. w/out the bag, etc) and I am pretty much a light weight myself. I live in a hilly area, and I would say my average speed on the Coda is about 3 mph slower than on my road bike. That's fine with me for the purpose I use the bike for. But, I wonder when I read that people here feel like it is a faster bike. I could not ride this bike on club rides, even my club, which is pretty much "social," as I would be left in the dust.
I don't think you can go wrong with a Jamis, though. I might check out the weight of the Trek, compared to the Coda.