I'm also 5'3" and have a 49cm Tri-Cross. I had the fit tweaked in a few ways- we installed Salsa Poco bars and shimmed the levers for my somewhat small hands, and raised the stem to improve the reach and put less strain on my shoulders (I have some chiropractic issues). Other than that, the fit has been fine. A smaller size might've been preferable if I were doing actual 'cross racing, but the 49's been great on pavement, gravel, and even easy singletrack.

I also tested a Dolce when I was shopping for a bike, but I ended up with the Tri-Cross.

Love your avatar, btw