Cloudy Nights has recently published a product review of DMK 21AF04 astronomy camera. The author of the review is based 45 miles north of Los Angeles, CA, USA, a few miles from the ocean.
The review seems pleased with the camera, writing a favorable text. He sets up the camera and software without any problems. Everything worked for him out of the box. He particularly notes that the customer service at The Imaging Source is competent, friendly and timely.
You can read the review in its entirety and see some of the sample images that have been published at: