Depending on your phone contract it might be convenient to use your phone as a hotspot until you get broadband. We did this when we were between suppliers and things went wrong, meaning we were without broadband for a couple of weeks.
The downsides are that if the person whose phone is being used takes it out of the house the signal goes with them, and the other person has to connect their phone (just a 2 minute job though), that you really need an 'unlimited data' contract or you will run up huge bills, and if you want to play games online the speed may not be enough. Otherwise it is a good solution, as the mini hub we were sent didn't have enough power to reach all of the house, and people usually have their phone in the room with them.