I don't have any advise as I haven't taken mine to a groomer yet. She is only 4mths old so doesn't really need full grooming. I do everything at home and the first time I tried to clip her, it was horrible! Please remember that the hair will always grow back LOL That is what I keep in mind. I also do alot of the brushing and combing while she is sleeping on my lap. This makes it a relaxing thing for her and now she goes to sleep when I comb her.
Hope you find something that works for you and good luck.