I have a 48-36-26 crankset and it's great. With a Sram 12-26 cassette, I have a 1:1 gear ratio.

Looking at the specs of the bike, I would look carefully at the following components:

Alex DA-22 rims can be problematic. I had a 36 spoke rear that started breaking spokes soon after I got it. At the very least, have them trued and tensioned by a shop as soon as you can. Think about a more beefy rear wheel, especially if you'll be carrying any kind of load or weigh more than jockey.

23mm tires are very narrow. Too narrow if you will be carrying gear. 28mm tires are much better.

Lastly, if you have any problems with your butt hurting after a long ride, Brooks B-17 saddles are the gold standard for touring.