We used AIMS and Victron inverters in the yachting world. AIMS is easier to setup and easier to troubleshoot, and they have excellent technical people who will answer phones and emails quickly. Victron are good but have a lot of parameters to setup. We are now RVing so we'll install an AIMS inverter in our 5th wheel. The AIMS inverter/chargers are very reliable as well. Here's a link to their 3kw unit.
https://invertersrus.com/product/aim...lf30w12v120vr/