I don't know anyone that has the Straggler yet, but I was looking at it to replace my Salsa Vaya. I also am looking at the Soma Double-Cross and would love to hear from those who have the 2X, but also those that have been looking at the Straggler.
I do not plan on racing cross. I commute to work (light load 15 miles RT) - need fenders, recreationally ride (15-30 miles regularly), do many S24Os (60-80 mile RT), and some longer touring (want to do the C&O and GAP, and SOMEDAY cross the country : ), but I travel with fairly light weight. I'm looking for a disc specific bike so I can transfer my lovely Mavic rims and BB7s. I'm looking for a comfortable bike that I can ride for many hours.
The Soma 2X Disc has a note about maximum tire width being 38mm w/o fenders. They said there was an error at the factory and until they sell those on hand they are keeping the number narrower than usual. However, if you look at the Double-Cross DC is says 38mm w/ fenders is fine. I run 35 mm Schwalbe Surpremes, and occasionally 40s on my Vaya.
I really like the Vaya and am simply looking for a straight top tube bike (almost 1st world issue I know). I'd like to have mid-fork eyelets, but that is not a deal breaker.