Just to clarify, the puppy will obviously be left alone when I go grocery shopping, gym and daughter's playgroups etc but not for consecutive hours on end. In my pre-baby life I was working a 6 day week as a full-time engineer so in comparison I feel I spend all my time at home.
Must also add that I have previously owned a Golden Retriever that lived to the ripe old age of 15. Toyed with the idea of another Golden but decided that a Cocker Spaniel suited our life more.