Warning: All of the so called "quick-fill" devices utilize a spring and an "O" ring seal. They fail occasionally. Guaranteed, all of them will fail at some time...sooner or later..it will fail, believe me...I've been there, done that, etc etc.
The failure mode is an incomplete seal...which allows air into the fuel stream...the motor runs erratically at first and then runs lean...and then it runs no more.
Save yourself a lot of grief and expense. Use the KIS principle. "keep it simple".
A fuel dot is as cheap and simple as you can get..and as reliable as you would ever expect anything to be.
Go with MInnFlyers one way valve if you need to save the mufflers worth of fuel...yes, it can add up over time.
As for the infernal fueling devices...keep away from them, and advise your friends to do the same.
If there's someone you really dont like..buy them one or two fuelers for Christmas.
Happy Holidays.