We had a boat once with a Kenyon, two burner, pressurized alcohol stove - and aside from the pump to pressure and burner preheating rituals, I actually liked cooking with it. It was much hotter than the non-pressurized versions and fairly easy to use.
I think the reported flare-up problems are a result of users uneducated in the proper use. The most important tip is to first fill the burner cup, shut the valve, and THEN light the alcohol until it burns out. Then turn the jet back on and ignite. If you preheat with the valve open - you'll have a towering infernal.
There's nothing like propane though - gas rules.
True Blue . . .
sold the Nauticat