I prefer longer time hire (weekends or more) and have done ON just to see if we are compatible . I stopped doing ON as after initial chat and play, the time is pretty much left to sleep and nothing in the am. And the price of a whole 24hr doesn't seem all that higher than 12hr ON, so even economically ON doesn't make sense. But if they were the European rates that were quoted here then it's different and certainly a good way to test drive before committing to longer.