Any screen wash recommendations?

Just run out. Nice that the car gives you a warning as it's running low.
Any difference between brands of note?

For the past few years both me and my Dad have used the Halfords concentrated brand (might be called "performance" or something) in our cars - quite happy with it and it even comes in different scents (!). Usual disclaimers, not employed by them etc, just offering it as a suggestion...

+1 for the Halfords, I also buy enough at the end of the winter to see me through the summer and the autumn as out of season it isn't available. I go for the superconcentrate as it is claimed to remain liquid down to -25c. If its a mild winter I often have enough to see me through the next winter too.

I always use the halfords one.

I've recently discovered a rather excellent german product called Sonax (easily gettable online and ebay) - its ultra concentrated and comes in a rather nifty dispenser - concentrations rates mean the bottle is very small in the boot and the results on the windscreen are smear free and excellent.