Happy with A/B
We were spared the task of selecting the best system for our Ericson 38 since the previous owner had bought one but not installed it. It's an air cooled, DC-only Waeco (A/B) CU84/VD09. It took us a day install it, with the compressor sliding into a space under the galley drawers and brackets we fabricated from from Starboard to mount the evaporator. It has performed well even during the heat of summer. The only problems we've had are due to aged batteries and charging system (to be replaced this weekend!). It does have a low-voltage cutoff so using the correct wire size is important to minimize drop. The unit does tend to run a greater percentage of the time than I expected but doesn't seem to draw more than the published 5A. Good Luck!