I am just starting the process for growing arugula with the kit from Home Microgreens (HM). After obtaining a grow light and receiving the package from HM I realized I had some questions about the process I am about to start. I sent an email to Todd Marsh at HM with my questions. Later the same day I received not only an answer to my specific questions, but extra information and technical analysis that will help my first attempt at growing arugula. That was GREAT! One extra note about Home Microgreens. Not only is the customer service top notch, from placing the initial order providing timely email help, but the web site is filled with information to make the whole process easier on the beginner and supportive of the more experienced grower. Bottom line, I am totally impressed by Todd Marsh and Home Microgreens!