Just wanted to post that I took advantage of the Memorial Day sale in the USA GHL store this past weekend. I picked up a used system from a fellow reefer not long ago, and had a few items that I wanted to pick up to complete my setup. I had one of my items backordered, and Vinny was right on top of it, giving me a few options (I chose to take a refund). My stuff shipped the same day I ordered, and it arrived a couple of days later. After I realized that I ordered a few probes and forgot to order the calibration fluid, Vinny helped me out with that as well. I am very pleased with the customer service !