Got them on my old MTB beater and not had any probs. Pretty tough, but trade off is they are relatively heavy.
Use Marathon Plus on the commuter and as bombproof a tyre as you can get IME.
Some people have had issues getting Marathons on some rims as they are quite stiff, but not been my experience. Although getting them on a Brompton is a nightmare I don't want to repeat anytime soon!!
I have knobblys 700x35 on my CX and want something more roady, although keeping features of a trail tyre for off road use trails and such. Also want comfort of a bigger tyre, I like vittoria rubino but not sure if they do a 700x32 semi slick tyre?