Pirate Ship: CheapARR Shipping

I love PirateShip and their rates are amazing! I run a small business and ship maybe 1500 to 2500 packages a year. I use primarily UPS and USPS and their rates seem to be fantastic based on what I see. I usually open my Shopify store on one screen and PirateShip on the other. I select labels and print directly from PirateShip. It integrates/syncs with Shopify seamlessly. Delivery dates seem to fairly accurate. Their chat support is also excellent. No complaints here!