grumpy, that is where I bought mine, it was the largest at the time I believe.
I set it up in the spare room as it is smaller than my own room. Still a decent size , it makes it so cold I have to use a doona, so very happy with it. I hate not having some weight on me when I sleep, or try to sleep!
Many of the better quality portables have a float-switch built into the condensation collector tank so that when it reaches near capacity, the switch operates a small electric pump which is connected to a long plastic tube which you generally put out the window to drain away the excess condensation.
As 20 litres is not much at all when you consider than my main 8kW split system produces a 20 litre bucket of condensed water in under 2 hours when the humidity is extremely high, from December to April, it would be false economy to buy one which needed to be manually emptied and/or overflowed every night.