I had a Rutland 913 on last season.
It was good, it charged and kept my batteries ticking over. But it was not quite powerful enough to keep them tippety tip top when I charged some of my juicier bits of electrickery. Plus the Rutland was only on temporary loan.
So I upgraded to an Airbreeze.
and a new inverter was installed around the same time... as well as a shunt in preparation for a battery monitor.