I've just (today!) gone tubeless on my road bike with 25mm Schwalbe Pro One tyres. They're on, holidng pressure, no problems so far.
Part of my reasoning to go tubeless was to cut down on the amount of ‘stuff’ in my jersey pockets when out riding. Having done a bit of research, the recommendation seems to be to carry a plug repair kit (the worms / anchovies) and a mini-pump rather than the usual CO2. CO2 supposedly not as good for re-inflation if you need to plug a hole and get the tyre back up to pressure.
1. Do those riding tubeless agree with the CO2 issues mentioned above.
2. Anyone got small mini pump recommendations (to go in a jersey pocket).