Poms need a really good groom every 8-12 weeks.  They are double coated and therefor can matt if not brushed and combed on a regular basis.  Double coated breeds should not be clipped as it can ruin their coat but if you look on our wall of fame there is a Pomeranian that has been clipped in a fox trim or teddy cut and we think he looks great.  What ever breed Wagstars in Cheadle Heath will advise you on the pros and cons of each stylr for you and your dog so you can make an informed choice,