The responsibility for watering the tree for a period of two years is an interesting point.
If it was outside your home then you could easily chuck a couple of buckets of water around the base as and when needed - but if it's some distance away would you still cart the water to it? Or would you hope that someone else would keep an eye on it?
Well I guess if you've just coughed up £240 then you'd make sure it was kept watered eh?
Still, I think it's worth the potential inconvenience - a tree lined road in blossum is a sight to behold.