You will need a space in the boat to put the unit. Mine is a 64 Qt and it is 31.1 ins long by 19.3 ins. high and 17.4 ins. deep. It weighs 85lbs! It has an MNRP of $1320 today. It is air cooled but doesn’t get very hot, so it can be in the main cabin without heating it up. I had mine in the forward cabin and it has been running for over two years, powered just by solar panels, and it just keeps on cooling stuff even when the temperature is 100 degrees outside. I can set it to make ice cubes - it will freeze a gallon of water overnight. But you can’t freeze and cool at the same time. It was too big for the space in my boat.
In the cockpit I have a cooler that will keep ice for a week, and will accept dry ice without damage. So I use this for ice because it is so nice to have really cold drinks at sea. The fridge is for vegetables, gluten-free bread etc. Eggs keep for four weeks even without refrigeration with a little care.