Hi Marcus
Your research sounds about right in my opinion, and getting a hit and miss inverter isn’t ideal.
When you say you’ve already purchased, does that mean you’ve put down a deposit?
Usually I would suggest considering the high quality solar inverters in our Best Inverters article.
As we argue in our solar guide, it’s also super important to find the right installer, so getting multiple quotes is always a good idea to compare.
https://forum.cleanenergyreviews.info/t/ch-1-guide-to-buying-solar-introduction-pdf-download/153
Hope that helps.
Marty