Absolutely the Best! So many pet meds have skyrocketed in the US, and require Vets writing prescriptions. It can be a real hassle. I have literally saved over 50% on Simparica Trio by Zoetis, and that includes the overseas shipping! Their communication is excellent, as I was apprehensive at first. I am on my second 6 month supply, and plan on continuing for the life of my dog!