I have heard people say that they tend to over vaccinate dogs and also that other services beyond their plan are ridiculously expensive. I don't know this for a fact as I would never use them but these are some of the things I have heard.
You might want to Google Banfield complaints and do some reading about them.
Here are a some links I just found:
Top 990 Complaints and Reviews about Banfield Pet Hospital 1,042 BANFIELD PET HOSPITAL Complaints and reviews @ Pissed Consumer https://www.facebook.com/pages/Banfi...51680344859815