I'm really pleased with my order! I was able to order generic heart worm prevention without a prescription, at a lower cost, and with free shipping as a first-time customer. I received my order on time and I was very pleased with the experience. Shipping was supposed to be 3-5 wks and I received my order within 3 wks. I will definitely be ordering from Express Pet Meds again! *Some reviews say that the customer never received their package - keep in mind that the company ships internationally and that customs officials may have prevented the package's delivery.