Other bikes in this same general category that may appeal to you include the Trek Verve, Giant Cypress, and Raleigh Detour. All these bikes have the larger 700c wheels (vs. 26" wheels on the Jamis). Giant's Sedona is probably most like the Jamis, in terms of being a comfort-oriented frame, without front suspension, and with 26" wheels.

With upright bikes like the Jamis and the Giant Sedona, I'd recommend a coil spring seat. You can get very nice ones from Brooks and also less expensive knock-offs from eBay. A sprung seat will add a tremendous amount of vertical compliance to the bike (feel fewer impacts).