The flange on the plug is not wide enough. If for example you are using a hole saw. there is almost no stock to attach the screws to. If the flange was 1/4 of an inch more in diameter would make the installation much easier.
Bottom Line Yes, I would recommend this to a friend
Eventually the top of the back side of the sleeve that attaches to the flange breaks off and then when you want to plug the extension cord in, you can't, because you just push the charger plug out of the recpticle. Then to charge you must get to the back side of the recpticle, push the charger plug into the recpticle and then mate the extension cord from the power supply into the charger plug.
This this is not durable. However, it's the only one I've seen that, at least at first, that holds the charger plug "firmly" (until it breaks) in the recpticle, without having to cut the charger plug off and hardwire the charger cord to the recpticle.
You buy this and you should count on buy several more over the years.
Bottom Line No, I would not recommend this to a friend
Professional grade onboard marine charger . 50% lighter
and 2 3 times faster than other models . 3 selectable performance matched charge profiles . 5 stage charging with temperature compensation