I actually think the AT3035 would work well as an acoustic guitar microphone. I personally prefer condensers over the SM57 for acoustic guitars, as they capture the highs a bit better.
However, I think the SM57 is really staple for electric guitar cabinets and everyone should get one (at least). I think it should work decent on the acoustic guitar too, especially if you use it together with a condenser. You'd then have more sounds to choose and mix from