I must admit all the dryers I've used are quite poor, you honestly could blow it dry yourself quicker. You may be lucky. Also if you use straightners, lots of folk find they dont work or get hot enough. Therefore my advice would be take gas straightners, perhaps your own dryer and some rollers to give your hair a bit of a lift then just dry the ends. Try a new style, you're never going to see any of these people again if its looks a different.
Yes they are, but if you want to style your hair,they are very basic.
I took my own and was glad I did.