I purchased the Innotek IUC-4100 in April 2010. The product arrived within 3 days. The kit contained everything needed. I had some questions regarding a single loop, backyard only installation. Wes replied quickly to my emails and I was off and running with the install. I laid about 500 feet of cable with a spade. This was more time consuming than using a trencher, but it was easier on the lawn. We followed the training DVD and have had great success keeping our 1 year old Vizsla within the perimeter. The dog collar holds a charge extremely well, it goes about 3 months before it needs to be recharged! I would give DogfenceDIY 5 STARS across the board – Great web site with informative videos, great product (IUC-4100), fast order fulfillment and great service! Well Done!!!