I've been playing guitar and bass from early 80's in punk/hardcore/post hardcore/garage bands. Since '89 I'm guitar/vocal in one of well known punk bands in ex-Yugoslavia.
First time I bought Truetone1Spot was because I needed spare power supply for few guitar effects and I was pretty satisfied with it so I bought few more. It is well built with long and sturdy cable and connector that fits tight to pedal fx or daisy chain connectors. In my case it powers 8(!) pedal effects ( drive, booster, screamerfuzz, chorus, phaser, delay, amp simulator, eq, tuner and noise gate, all analog ) with no noise or hiss or any other issues you can relate to power supply, both on tube or solid state amps. And it is like that for 10+ years of live and studio use. Actually in studio l always use Truetone1Spot. At the end me and my band mate (also my son, we both play guitars and basses) have 6-7 or more of these power supplies ( one for each of our live/studio pedalboards, keyboards, spare ones ... ) because l stopped looking for something better long time ago. Not a single one has any issues, real working horses. Maybe l just got lucky but l doubt it. Friends that purchased it on my recomendation are also satisfied with it. The price is also pretty affordable for quallity you get.
If you are not satisfied with the product, you can always count on Thomann support.
All in all - you can hardly miss with that little power beast!