I wouldn't buy the Ultra 150, tell him to get the STX-15F for his wife. It's a better ride, 4 stroke, better on gas, just as fast. As far as the SEA-DOO or KAWI supercharged the KAWI is new this season, you know how that is. When the new SEA-DOO supercharged came out my buddies sank to the bottom of the bay because of a bad seal. If I had to choose though I would take the KAWI, its gonna be bad!