I started using this stuff a couple years ago, I'm a small grower so a lb lasts me a couple of grows. When I ran out I didn't reorder and just started using Dyna Gro, after reading this and the other thread about HR I decided to order some more for the grow I'm getting ready to start. The first time I ordered from HR I had no problems getting email answers to my questions and my order arrived in 3-4 days. This time it seems things have changed, I've emailed them 4 times and received 1 reply which took 4 days and didn't address the question I had asked. I knew the product was good so I went ahead and put in my order, I got a confirmation email the next day, then a day later I got another email saying my order had shipped, the problem is, the address they had was incomplete (it was correct in the email confirming my order and payment, but wrong in the shipping confirmation email), my phone number was also completely wrong. If they ship to the address that is in the email, it will be very lucky if I get it. I tried emailing them to explain the problem, that was 2 days ago and no response. I tried calling and never managed to get a human on the line. I really like the product, but customer support is basically non-existent.