Having returned from my sojourn in Muscaf, I can report that Otaxi works well UNLESS you are at a hotel and need a taxi.. The Otaxi will come but park somewhere away where it is almost impossilrle to find! The best bet is to find a busy road and simply flag down a vacant taxi - then you need to bargain actively - worked for me 100% of the time, even while standing there with my bags and heading to the airport!