Often when using an adapter to convert European two-pin power supplies to the UK three pin plug, the connection is less than satisfactory. These adapters often resemble nothing more than an electric shaver adapter, which is fine for that purpose but a bit wobbly for live use. I've had adapters in the past that have not gripped the two pins well and this has caused the heavy power supply to shake loose, causing intermittent power. Not great on stage - and when your pedal board goes down mid gig the audience gets upset... been there, done that. This little adapter has a screw to lock the two-pin power supply into place. Once tightened, the power supply cannot shake loose or become intermittent - and so this really is useful for a gigging musician such as myself. Well done, Thomann - this is a great product that solves a simple problem with a simple fix.
It is what it is and it does what it does. No problems whatsoever with this wee chap. I am a Pro Musician with 100+ gigs per year and I cannot afford to have equipment that won't keep up with me - on the road AND on the stage. A great item at a great price.