Interesting question. I'd say they will last the Summer, as anyone working in an office will want to go out for a walk during lunch (I know I always did). But I wonder during the winter. They were here before Covid, placed at the car-parks where we go walking, e.g. Crosshaven walk. A new one has sprung up by the beach at the end of Ringaskiddy. I recognise it from when it was parked by Charlesfort in Kinsale. I suppose they are easy to move, cheap to store during the winter and bring out again during the summer.
Personally I don't use them, I'm an old fart and don't need the constant coffee in my hand.