depends. i have two brokers.
#1 is a small broker that i pay no fee to. all commisson is paid by the mortgage company to them. they do a great job but are not that creative with financing.
#2 is a more creative broker that arrangers very aggressive financing terms for forward purchase facilities etc. to them i pay 1%. but thats suits me fine.
i have had loads of bad experiences but have now found people i am happy with.
tom