I am also interested in feedback on this question since I am also in the market for a similar solution.... Here are some of my views:
Growatt/Kodak/Axpert all appears to be reasonable quality Inverters that can keep the lights on when the power goes off. However, my choice would be the LuxPower because it has "blending" functionality that the others don't have (based on the research I have done to date) - this function can supply your load from both PV and the grid - watch here
This is significant because it can actually result in more $$$ savings!
For a battery I like the Hubble because it appears to be high quality, 1C rated with high cycle life, has internal fire suppression and is supported by the LuxPower Inverter. I am not aware of an AM-1 battery from Hubble but certainly the AM-2 & AM-5 versions for ~5Kw/~48V systems.