find a good breeder, watch for the eye, heart and knee problems. health testing on all breeding stock is 100% MUST.
the only real cons other than health would be keep those ears clean and regular grooming.
there very sweet dogs in general, usualy a stable temperment and like all spaniles eager to please and nice to train there very inteligent.
there a great size for a small place without being "breakable tiny"
honsetly if you can find a very good breeder, theres not all that many cons to the breed, there awsome little dogs and fit most situations!