Seaduck - Without going into a lot of details, I think if you do your homework and understand what that system provides, and doesn't provide, you'll find a better value elsewhere. Here are some thing to look for:
*Standard-sized prefilters, membrane, and DI cartridge
*Brand name, high-rejection membrane
*Specifications provided for each stage
*Pressure gauge after the prefilters and before the membrane
*Thermometer
*TDS meter
*DI bypass
*Vertical DI stage
*Refillable DI cartridge
*Aluminum bracket
*Quick connect fittings
*No water from pressurized storage container delivered to DI
*Flush valve
*Clear housings
*High-quality instructions
*Customer support before, during, and after your purchase
*A vendor involved in your hobby
If you have any questions we can help you with, feel free to give us a call.
Russ
513-312-2343