Seems like there are a few old fart cyclists here. As the saying goes...it is not about the bike.
I am in the market for a porteur-style bike but something still fairly light. Your bike seems like a good balance - can you give a brief ride report? Right now I'm looking at a Masi single speed but might do a build up from a Surly frame unless I can find a good ebay/craigslist frame.
The #1 reason I chose the Trek Allant was its light weight. I don't know the exact weight, but it is quite light and there isn't any extra "Frou" to add weight. Actually, speaking of porteur-style, the women's version of the Allant has a front mini rack but the men's doesn't. I've been looking all weekend for a reasonable priced, small rack but haven't found anything yet. Maybe I can talk the bike shop into selling me one off the women's bikes!
The ride is extremely comfortable, the tires are wide enough to provide some cushioning but not the monstrosities found on "cruiser" style bikes. I also like the handlebars, there's just enough sweep to them for comfort but not so much that they feel cramped. Nor are they they uncomfortable Texas Longhorn style found on cruisers. I did raise the stem to its maximum height and the seat is as low as I can tolerate and with the slanted cross tube, the handlebars are higher than the seat which is something that I require for the maximum upright ride. The old style stem allows much more flexibility in adjusting the height of the handlebars.
I looked at KHS bicycles and found the ride to be extremely comfortable but the bikes had 3 issues I couldn't tolerate. One was the grip shifters, two was the front suspension fork (what's the point of a front shock when 99% of your weight, on a comfort style bike at least, is on the seat????) and three, the too wide seat. The seat was extremely comfy, but every time I leaned forward or stood up to pedal, the wide seat cut into the backs of my thighs. The Trek seat is really ideal for a range of pedaling styles.
The shifting is extremely smooth and although I thought the bike was overgeared at first, I do actually use the full range of gears. The rack is sturdy and the paddle type handgrips are really, really comfortable.
Trek didn't try to reinvent the bicycle with the Allant, they simply incorporated the best of the old style uprights, made everything lighter and gave it a classy paint job. Its price of $489 is reasonable. It came with Schrader valve stems but they switched them out for Presta.