Had to hire one of these a couple of months ago when my water pump packed in half way through a job it was the largest my local hss had in the shop, so had no choice . Would not recommend it at all was a real pain to fill and empty and I certainly couldn't clean two average sized rooms between fills! Performance was no better than I expected from a machine this size,but it will certainly make you appreciate your own machine more when you get it back, hope you sort something out.
Rob